Square drain kit: Premium square drain with Mistral cover and waste trap
Real image of square drain with Mistral cover
Included Waste Trap McAlpine HC26-50, 26 l/min of flow rate
Whole set you get
Closer look at the adjustable legs
Close up on carefully made frame and cover
Zoom on details of Mistral cover
Example of finished Wet Room with the drain available here ( square wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( square wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( square wet room with offset drain)
Example of finished Wet Room with the drain available here ( square wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( square wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( square wet room offset drain )
Example of finished Wet Room with the drain available here ( square wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( square wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( square wet room with offset drain )
Example of finished Wet Room with the drain available here ( rectangle wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( rectangle wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( rectangle wet room with offset drain )
Square drain kit: Premium square drain with Mistral cover and waste trap
Real image of square drain with Mistral cover
Included Waste Trap McAlpine HC26-50, 26 l/min of flow rate
Whole set you get
Closer look at the adjustable legs
Close up on carefully made frame and cover
Zoom on details of Mistral cover
Example of finished Wet Room with the drain available here ( square wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( square wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( square wet room with offset drain)
Example of finished Wet Room with the drain available here ( square wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( square wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( square wet room offset drain )
Example of finished Wet Room with the drain available here ( square wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( square wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( square wet room with offset drain )
Example of finished Wet Room with the drain available here ( rectangle wet room with drain in the centre )
Example of finished Wet Room with the drain available here ( rectangle wet room with drain in the corner )
Example of finished Wet Room with the drain available here ( rectangle wet room with offset drain )

Square gully Wiper WP150 Premium Mistral

Square shower drain 15 x 15 cm model Mistral for tiled floor 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:

  • Square gully Wiper WP150 Premium Mistral x 3
Total available in stock: 3

Square wet room drain WP150 Premium Mistral is the largest square shower drain for wet rooms in our shop. It has included stainless steel flange and sealing membrane, which are very useful where waterproof seal is necessary. It is made of 304 grade stainless steel which gives product seamless solid look and strength to resist corrosion.

It consits of 150 x 150 mm drain frame and 130 x 130 mm grate. Mistral top cover has regularly placed differently sized circular holes, which are used for water to flow. Stainless steel is finished with brush, which is very practical and long lasting solution, even after scratching it damage will usually not be visible.

Fitting McAlpine PVC siphon trap comes included to every unit. It's most important propertites is speed it can take water from the floor - 26 l/min, water seal which prevents air from returning to room - 20 mm, total height of 65 mm and installation flexibilty - can be rotated and pipe's height adjusted. Made by McAlpine can be assembled to the drain and to waste system easily.

Drain size

Square drain Wiper Premium is available in 3 standard sizes. While technical properties of each type is the same, size should be chosen to match the room or enclosure size.

Drain Cover
  • Mistral

There are 6 drain cover patterns available. The flow rate is the same for all of them. They are interchangeable and can be swapped even after installation. Each drain sent out is equipped with a lifting hook which makes cleaning easy.

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

SGP1515M
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:

  • Square gully Wiper WP150 Premium Mistral x 3
Total available in stock: 3
Same day shipping and delivery on Monday if you order in next 0 hours 00 minutes and 00 seconds
£228.73
Tax included
To get an extra 5% discount simply increase your cart value to £500.
Read more
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

Threshold Discount
£500 5%
£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 £271.27 more to unlock a 5% discount for the entire order.
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Based on current settings, if you Add to cart current set and then order, you will receive the following items:
Square drain channel
Square drain channel

Main drainage part, stainless steel channel drain. Outlet is centred. Surrounded by steel flange on all four sides, 30 mm wide, important for insulation.

1.5 mm thick steel

Circle patterned square drain cover
Drain grating

Brushed stainless steel drain grating, perforated with irregular circles pattern is included. To clean the drain, you can lift it up. It is equipped with lifting hook which makes it easier. All covers available share technical properties, but are the only visible part of the drain visible after installation is over so it should be chosen by appearance.

Mistral (circles)

Waste trap
Waste trap

As standard with every order, we include a compression fitting McAlpine waste trap with a 26 l/min flow rate, 20 mm water seal and 1.5 inch pipe diameter. It requires only 65 mm of space underneath the tray. Fully rotatable and adjustable.

If our default waste trap does not fulfil your requirements, we have various other waste traps available which are compatible with our products. We can supply them at the same cost and speed as the default trap. Drop 50 is an interesting choice, with a 48 l/min flow rate and 50 mm deep water seal, making it compliant with building regulations, whilst being only 10 mm higher than a standard trap. To alter your choice of waste trap send us an email or leave a note during your order. Please see the document below for more details.

Available waste traps

Flow rate: 26 l/min

Square drain classic 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

 
  • Made of high quality stainless steel
  • Size: 150 x 150 [mm]
  • Total height (H): 88 [mm]
  • Height (G): 68 [mm]
  • Throughput: 26/50 [l/min]
  • Insulating flange included
  • Sealing membrane included
  • Brushed Stainless Steel Finish
  • High quality McAlpine poly propylene siphon trap
  • Complete siphon, pipe diameter: 1.5" (british standard size),
  • Pipe height adjustable and rotatable at 360°,
  • Drain's cover included.

WP150 Premium

Product is suitable for:
Timber floor Concrete floor Tiles Mosaic

Grating patterns available for this product:

square-grating-designs.jpg

Linear shower drain advantages

Cover size
130 x 130 mm
Collar size
220 x 220 mm
Grate style
Mistral
Total height
88 mm
Material
304 S 15 grade stainless steel
Additionals
Tanking kit, Adjustable legs
Drain surface
mirror · brush · matt
Waste trap
Plastic (PCV)
Steel collar
Integrated
Cleaning
From above (Easy clean system)
Model
Premium
Set consists
Square drain body · stainless steel collar · sealing membrane · drain grating · siphon trap
Size
150 x 150 mm
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
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.

Wp Premium Fitting InstructionsWiper Premium installation Tech Drawing Hc26 95Siphon technical drawing Long Term Warranty ConditionsLong term guarantee

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