Linear Drain Invisible Slim: Versatile floor finish linear shower drain with flange
Stainless steel shower gully without vertical frame
Product is supplied as complete set. Sealing membrane, detachable adjustable feet and appropriate fitting instructions
Slim drains have welded stainless steel trap with 38 l/min of flow rate
Closer look at the adjustable legs
Plain stainless steel cover is included to the drain. It must be covered entirely, with the same material as rest of the floor
Drain is not visible at all after the installation, besides the channels for water to flow
Example of finished Wet Room with the linear drain Invisible Slim available here
Example of finished Wet Room with the linear drain Invisible Slim available here
Example of finished Wet Room with the linear drain Invisible Slim available here
Example of finished Wet Room with the linear drain Invisible Slim available here
Technical drawing showing the dimensions of the Invisible Slim shower drain
  • -20%
Linear Drain Invisible Slim: Versatile floor finish linear shower drain with flange
Stainless steel shower gully without vertical frame
Product is supplied as complete set. Sealing membrane, detachable adjustable feet and appropriate fitting instructions
Slim drains have welded stainless steel trap with 38 l/min of flow rate
Closer look at the adjustable legs
Plain stainless steel cover is included to the drain. It must be covered entirely, with the same material as rest of the floor
Drain is not visible at all after the installation, besides the channels for water to flow
Example of finished Wet Room with the linear drain Invisible Slim available here
Example of finished Wet Room with the linear drain Invisible Slim available here
Example of finished Wet Room with the linear drain Invisible Slim available here
Example of finished Wet Room with the linear drain Invisible Slim available here
Technical drawing showing the dimensions of the Invisible Slim shower drain

Linear drain Wiper 700 mm Invisible Slim

Low profile versatile floor finish linear shower drain 70 cm with flange, sealing membrane, waste trap, detachable adjustable feet and cover

See parts included
Bespoke Linear Drains
Check stock live

Amount of products available off-the-shelf. If order is placed before 3pm, it will be shipped same day with free next business day delivery.

Quantity available in stock for next day delivery:

  • Linear drain Wiper 700 mm Invisible Slim x 4
Total available in stock: 4

Linear shower channel Wiper Invisible Slim 700 mm is stainless steel shower gully without vertical frame, which gives it flexibility to be installed under any finish material. It is most commonly used to be in vinyl, marble, stone, exotic wood or glass floorings. Entire drain including the grating should be covered with your finish material so only channels for water to flow are visible after installation. Invisible Slim is more advanced than Invisible, it has lower installation height and higher capacity. Wet room drains Invisible have included grate 52 mm wide and total width with flange is 92 mm. Cover is 694 mm long and drain 760 mm long in total. It should be covered entirely with floor finish material, best if it's edges could be properly adapted to leave sufficient amount of space for gaps for water to flow. Fabric for cleaning purposes before sticking finish material to cover is included. Appropriate Smart Trap high capacity siphon trap is integrated to the gully, centred with pipe stuck in 90 degrees angle. Pipe is 40 mm long and has diameter of 40 mm with included adapter which allows it to be connected to 50 mm waste system pipe. Trap has 30 mm tall water seal which blocks the air from going back to bathroom. It features capacity of 38 l / min and can be installed in wet room with even large shower heads.

Product Type
  • Linear Drain Invisible Slim

Consider your floor finish type — tiles, micro cement, or vinyl — choose a finish that complements your bathroom style. Evaluate dimensions and features to match your requirements.

Drain Length

Drain is available in 8 standard lengths. Although they have same technical performance, length of the drain should be matched room requirements. For an instance 700 mm Drain length is recommended for 1000 mm wide shower.

Waterproofing kit

Waterproofing kit is used to seal shower tray as well as connections between walls and floor. It is recommended for concrete and mandatory for timber flooring. Each kit contains 4kg tanking liquid, 1l primer, 10m sealing tape, 2 corners, 2 pipe collars. One kit covers 3 m² with 2 coats. Waterproofing kit

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Shower head

Thermostatic Shower Column is a luxury product available in silver, black, or brass. Painted with a more advanced technique than a simple shower head, it offers exceptional durability and aesthetic appeal. This shower column features both a rainhead and a handheld shower wand, providing versatility and convenience. It also includes an on-top-of-the-tiles option for easy installation. This shower column complements our drain range perfectly, adding a touch of elegance to your bathroom. Shower column

Underfloor heating kit

Complete Sunfloor Underfloor heating set, including mat, Wi-Fi thermostat, floor sensor and fitting instructions. Fully suitable with our other products. Advanced thermostat with and iOS/Android app allows to set desired temperature of the floor from distance as well as create schedules.
Complete Sunfloor Underfloor heating set

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Tile Backer boards

Tile backer boards are used to create the perfect substrate to tile onto in wet rooms and bathrooms. Superior to cement boards and plywood, due to its waterproof and thermal insulation properties. Tile backer boards

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Shower screen

The Wiper Verre Shower Screen is one of Wiper's new shower enclosures. It is available in multiple standard sizes making it fit in small and large wet rooms. Black and silver options make it looks minimalistic and modern. Perfect choice for any wet room upgrade. Made of 8 mm toughened clear glass with Active Shield coating, 2000 mm high. Included fittings are made of stainless steel. The Verre Shower Screen from Wiper

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Choose best size

LIS7I
Check stock live

Amount of products available off-the-shelf. If order is placed before 3pm, it will be shipped same day with free next business day delivery.

Quantity available in stock for next day delivery:

  • Linear drain Wiper 700 mm Invisible Slim x 4
Total available in stock: 4
Same day shipping and delivery on Monday if you order in next 0 hours 00 minutes and 00 seconds
£278.09 £347.62 -20%
Tax included
To get an extra 5% discount simply increase your cart value to £500.
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Trade discounts are available for both wholesalers and loyal customers. To receive a discount, your cart total value, overall purchase value, or overall account purchases must cross the required threshold. Trade discount policy

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£1000 10%
£2000 15%
£5000 20%
£10000 25%
£25000 30%

or for further details explore our trade discounts.
Add to cart your current selections, and you only need to add £221.91 more to unlock a 5% discount for the entire order.
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Amount of product sales 3 Sold during the last 90 days
Amount of product views 6 Views during the last 24 hours
Based on current settings, if you Add to cart current set and then order, you will receive the following items:
Drain body
Low profile

Main drainage part, stainless steel channel drain, 20 mm high, 52 mm wide. Outlet is welded to the channel, fixed in central position. Drain is extended by steel flange on all four sides, 20 mm wide, important for insulation. Overall height required for installation is 68 mm.

1.5 mm thick steel

Tileable Slim linear drain cover
Drain grating

Slim plain stainless steel cover is included to the drain. It must be covered entirely, with the same material as rest of the floor (marble, stone, tiles, vinyl). Cover is completely flushed with the flange. Drain is not visible at all after the installation, besides the channels for water to flow.

Invisible Slim

Low profile waste trap
Low profile waste trap

Slim drains have welded stainless steel trap with 38 l/min of flow rate and 30 mm deep water seal. While being very low height, offers high throughput and smell-blocking feature. Resistant to damage.

Flow rate: 38 l/min

Linear drain accessories
Accessories & Guarantee

Product is supplied as complete set. Sealing membrane, detachable adjustable feet and appropriate fitting instructions come together with the goods to make sure it's installed correctly. Lifting hook for drain grating and other fitting parts also in the package.

In addition to our 30 days unconditional return right, there is 10 years guarantee on the product given by the manufacturer. Guarantee is extended to 25 years if the product is purchased together with waterproofing kit.

For fitting and using

Waterproofing kit
Waterproofing kit

Easy to use set of ready-mixed sealing materials suitable for the waterproofing of floor and walls. Contains 4kg of PCI Lastogum tanking paint, 1l of primer, 10m sealing tape, 2 corners and 2 pipe collars per every 3.5 m² purchased. Should be used to seal the joints between the floor and walls and to waterproof the drainage. Can be used for your entire bathroom insulation. Not required if you have your own waterproofing materials, otherwise very useful and recommended.

Size: not included

Underfloor heating kit
Underfloor heating kit

Complete electric underfloor heating set, including mat, optional thermostat (WiFi available), floor sensor and fitting instructions. Fully suitable for use with our other products. Advanced thermostat with and iOS/Android app allows you to set your desired temperature of the floor remotely, as well as create schedules.

Size: not included

Thermostat
Thermostat

Thermostat is a control device for the mat. SUNFLOOR Smart WiFi Digital Thermostat is a wireless controller including the sensor for adjustment of temperature remotely. Allows you to set the floor temperature away from the thermostat, as well as create periods throughout the day with specific temperatures. For example 26° when you may usually have a shower in the morning.

Size: not included

Shower screen
Shower screen

The Verre Shower Screen is one of Wiper's new shower enclosures. It is available in multiple standard sizes making it fit in small and large wet rooms. Black and silver options make it looks minimalistic and modern. Perfect choice for any wet room upgrade. Made of 8 mm toughened clear glass with Active Shield coating, 2000 mm high. Included fittings are made of stainless steel.

Size: not included

 
  • Length (X): 700 [mm],
  • Height of channel (C): 20 [mm],
  • Height to the centre of waste pipe (G): 48 [mm],,
  • Total height (H): 68 [mm],
  • Width of internal tray (B): 40 [mm],
  • Width of channel (Y): 52 [mm],
  • Width of insulating flange (F): 92 [mm] (included)
  • Width of Sealing Membrane (S): 250 [mm] (included)
  • Complete siphon, pipe diameter: 1.5" (British standard size),
  • Drain's cover included.

Slim - Invisible

Product is suitable for:
Timber floor Concrete floor
Vinyl
Hardened glass
Gres
Granit
Marble
Exotic wood
Tiles
Mosaic

Linear shower drain advantages

Channel length
700 mm
Grate style
Invisible
Channel height
20 mm
Total height
68 mm
Channel width
52 mm
Total width
90 mm
Material
304 S 15 grade stainless steel
Additionals
Tanking kit, Adjustable legs
Drain surface
brush
Waste trap
Stainless steel
Steel collar
Integrated
Cleaning
From above (Easy clean system)
Model
Invisible Slim
Set consists
Linear drain body · stainless steel collar · sealing membrane · drain grating · siphon trap
Smart trap
SMART TRAP®
The drain includes a new patented stainless steel siphon with a flow rate of 38 l/min and the Easy Clean system. To clean it you can simply dismantle it from above when installed, and waterflow will remove any dirt. If not you can use chemicals. The waste trap provides Water Seal that prevents any bad smells to get back to your shower.

  • Colour: metal, chrome
  • Material: 304 stainless steel,
  • Cleanable: from above,
  • Smell trap: incorporated,
  • Pipe diameter: 1,5" (british standard pipe size),
  • Diameter of siphon: 105 mm,
  • Total siphon height: 50 mm.


Please note that this siphon makes an integral part of the drain. It cannot be rotated. This solution helped with reducing the total height of the drain and creating a very durable, solid structure.
Tanking kit

The tanking kit is a ready-mixed, under-tile tanking system to protect water sensitive substrates from exposure to water. Suitable for wet areas such as bathrooms, showers in residential buildings, hotels, old people's homes and hospitals. Should not be used in places exposed to pressurised water, for an instance swimming pools. Ready to use, no mixing required and easy to apply with a roller. The kit includes a high performance joint reinforcing tape to protect against movement in floor joins and corners etc. The contents are all INSIDE the bucket and the contents are protected in the bucket with polystyrene infill's to stop transit damage.The instructions are printed on the rear of the tanking kit.

For anti-moisture insulation systems in wet rooms and rooms intended for human residence. The tanking liquid is a ready-to-use singlecomponent, solvent-free sealant composed of polymer dispersion, fillers and modifying additives. When applied to the surface, upon binding it creates a flexible and water-insulating layer.

Tanking kit contains:
  • 4kg Tanking Liquid
  • 1l Primer
  • 10 Metres flexible Sealing Tape
  • 2 Flexible Pipe Collars
  • 2 Corners
Features:
  • Consumption to 1,2kg/m²
  • Solvent free
  • Drying time: 2h
Tanking liquid and primer
Tanking liquid
Tanking liquid

The tanking liquid is a ready to use, single component, solvent-free sealant mass, consisting of polymer dispersion, fillers and additives. When applied to a substrate and cured, it forms a flexible waterproofing coating. The product is intended for use inside places intended for human residence, especially in humid areas (such as bathrooms, kitchens, laundries), to perform insulation against moisture under linings and coverings, such as ceramic tiles, glazed tiles, terracotta, wooden floors and panels, and synthetic carpets.

The product is intended for priming absorbent and porous surfaces, inside and outside buildings. It is especially recommended for cement - limestone plaster, gas concrete, plaster-carton boards and cement plaster. The primer has a high penetration ability, is deeply absorbed into the substrate, thus strengthening it, while allowing for „breathing”. These benefits improve the structure of the substrates, which, due to the passage of time, have lost their appropriate parameters. The priming solution improves adhesion to the surface of other materials that will be used on the primed substrate. By reducing the absorbency of the substrate, the wear of the applied coating materials, emulsion paints, glues, mineral putties reduces as well. The solution, due to the content of the biocide and fungicide, protects the primed substrate against the formation of mold and bacteria in the product.

Primer
Waterproofing Calculator

Waterproofing Calculator

Optimize Your Waterproofing with Our Calculator – Accurate, Customizable, and Easy to Use. Get your waterproofing needs sorted with our advanced waterproofing calculator, designed for accuracy and ease of use. Whether you’re waterproofing a bathroom, kitchen, or any other room, our tool allows you to calculate your requirements in three different ways: by room dimensions, simple room coverage, or exact square meter needs. Additionally, you can exclude specific areas like doors and windows, or even calculate for multiple rooms at once. Our calculator provides a tailored list of necessary products, ensuring you get only what you need. Download your estimate as a PDF or add the items directly to your cart for a streamlined ordering experience.

Calculate Needed Waterproofing
Tanking kit

The tanking kit is a ready-mixed, under-tile tanking system to protect water sensitive substrates from exposure to water. Suitable for wet areas such as bathrooms, showers in residential buildings, hotels, old people's homes and hospitals. Should not be used in places exposed to pressurised water, for an instance swimming pools. Ready to use, no mixing required and easy to apply with a roller. The kit includes a high performance joint reinforcing tape to protect against movement in floor joins and corners etc. The contents are all INSIDE the bucket and the contents are protected in the bucket with polystyrene infill's to stop transit damage.The instructions are printed on the rear of the tanking kit.

For anti-moisture insulation systems in wet rooms and rooms intended for human residence. The tanking liquid is a ready-to-use singlecomponent, solvent-free sealant composed of polymer dispersion, fillers and modifying additives. When applied to the surface, upon binding it creates a flexible and water-insulating layer.

Tanking kit contains:
  • 4kg Tanking Liquid
  • 1l Primer
  • 10 Metres flexible Sealing Tape
  • 2 Flexible Pipe Collars
  • 2 Corners
Features:
  • Consumption to 1,2kg/m²
  • Solvent free
  • Drying time: 2h
Tanking liquid and primer
Tanking liquid
Tanking liquid

The tanking liquid is a ready to use, single component, solvent-free sealant mass, consisting of polymer dispersion, fillers and additives. When applied to a substrate and cured, it forms a flexible waterproofing coating. The product is intended for use inside places intended for human residence, especially in humid areas (such as bathrooms, kitchens, laundries), to perform insulation against moisture under linings and coverings, such as ceramic tiles, glazed tiles, terracotta, wooden floors and panels, and synthetic carpets.

The product is intended for priming absorbent and porous surfaces, inside and outside buildings. It is especially recommended for cement - limestone plaster, gas concrete, plaster-carton boards and cement plaster. The primer has a high penetration ability, is deeply absorbed into the substrate, thus strengthening it, while allowing for „breathing”. These benefits improve the structure of the substrates, which, due to the passage of time, have lost their appropriate parameters. The priming solution improves adhesion to the surface of other materials that will be used on the primed substrate. By reducing the absorbency of the substrate, the wear of the applied coating materials, emulsion paints, glues, mineral putties reduces as well. The solution, due to the content of the biocide and fungicide, protects the primed substrate against the formation of mold and bacteria in the product.

Primer
Waterproofing Calculator

Waterproofing Calculator

Optimize Your Waterproofing with Our Calculator – Accurate, Customizable, and Easy to Use. Get your waterproofing needs sorted with our advanced waterproofing calculator, designed for accuracy and ease of use. Whether you’re waterproofing a bathroom, kitchen, or any other room, our tool allows you to calculate your requirements in three different ways: by room dimensions, simple room coverage, or exact square meter needs. Additionally, you can exclude specific areas like doors and windows, or even calculate for multiple rooms at once. Our calculator provides a tailored list of necessary products, ensuring you get only what you need. Download your estimate as a PDF or add the items directly to your cart for a streamlined ordering experience.

Calculate Needed Waterproofing
Sealing mat

ISOL-ONE Sealing collar
The ISOL-ONE sealing mat is made from a polyethylene film coated with a special non-woven fabric on both sides, so that it bonds with the glue layer. Its installation is recommended in all areas that require sealing. The mat is resistant to the cracking of the substrate, ensures the seal up of the entire surface, reduces installation time, allowing to lay the tiles immediately after gluing the mat.

Adjustable legs

Adjustable legs
Adjustable feet are two small metal parts that can be connected to each channel end. They allow you to precisely set the unit height and level. Thanks to the red caps you can anchor the drain to the floor. They are part of unit, included in price and always added to each drain.

Linear drains fitting instructions

Please read the instructions carefully before installation.

  1. Set the level of the finished shower floor surface and mark it on the wall in the area where the channel will be fitted (allow for the slope of the shower surface).
  2. Connect the channel to the drainage system and set the height using the adjustable legs (optional additional payment) so that the upper edge of the frame is approximately 1mm below the finished surface level of the shower.
  3. Fill the space under and around the channel with screed or a similar product to the level of the flange.
  4. Cover the flange and the surrounding area with an insulating foil in a liquid form.
  5. Apply the sealing membrane in position on the freshly applied liquid foil.
  6. Apply a second coat of the liquid foil to the whole surface of the shower area and the sealing membrane.
  7. Once the liquid foil is completely dry as per the manufacturer's instructions, the shower can be tiled (eg ceramic tiles or granite). Seal the gap between the tiles and the channel frame with flexible sanitary silicone compatible with the tile and grout colour.
  • The diagram shows various parts of the channel and their dimensions can be found on the More info tab.
  • We recommend that you do not remove the protective foil from the grating until the installation is complete
  • The instructions refer to the correct installation of the channel only and do not include information regarding insulation or other elements of the shower cabin such as sealing connections between the shower walls and floor as well as water proofing.
  • The channel should be installed together with the siphon trap and then the adjustable legs should be glued in the places shown.
Detailed instructions can be found HERE
Installation step Installation step

Documents available below are available to everybody for free to download. They can be open in high quality on your computer and be printed for further use.

Linear drain installation
Siphon technical drawing
Long term guarantee
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