91 Litres Cold Water Loft Tank - 515 x 515 x 530mm


Available Options (Prices ex. VAT)

£146.80 £122.33


Lead Time
2-3 working days
Delivery From
Free UK Mainland Delivery
Exclusions apply - Click here for more details

UK Delivery Charges - Important Information

Our standard UK Mainland delivery charges have been automatically added to your shopping basket. As our products are supplied from a number of different locations, delivery times can vary, please read the product descriptions for more details. If we are unable to deliver your order within the timeframe specified in the product description, we will contact you, as soon as possible to advise of a revised delivery date.

Need your order urgently? We may be able to assist and offer an express delivery service, call our sales team on 01777 858009

Buying in bulk? Call our sales team on 01777 858009

Delivery to any of the following areas may incur additional delivery charges

Channel Islands, Isle of Man, Isle Of Wight, Anglesey, Isles of Scilly, Western Isles, Orkney Islands, Shetland Islands, Northern Ireland & Republic of Ireland, Scottish Highlands and Offshore Islands and also areas north of the Glasgow/Edinburgh line including the following postcode areas:

AB, DD, DG, EH, FK, G, HS, IV, KA, KW, KY, ML, PA20-40, PA60-78, PH1-26, PH30-44, PH49-50, TD, ZE

If your delivery location or postcode is listed above, please call our sales team on 01777 858009 for more details.


Weight - kg
Length - mm
Width - mm
Height - mm
Capacity - Litres
Capacity - Gallons
Suitable for Drinking Water (Potable)
WRAS Approved
Construction Material
Product Downloads


This water tank is a complete solution for loft water storage or as an additional expansion tank. The tank is supplied with an installation kit as standard; which is sealed inside the tank for delivery purposes. The only extras you need are the copper tubes/pipes. 

This water tank is manufactured from polyethylene plastic, creating a strong and durable mould to guarantee a long product life. Loft water tanks are mainly used as part of a gravity fed (fully vented) central heating system.

This WRAS approved loft tank complies with British standards to hold potable water. This product can be used as a replacement tank, extra tank or to be installed in new builds. 

Kit includes;

Byelaw 30 kit; which includes

  • Screened warning pipe elbow
  • Dip tube
  • Ball valve back plate (suitable for ½” or ¾” ball valve)
  • Plastic support washer
  • Rubber sealing washer
  • Insulation jacket ties
  • Screwed breather
  • Screwed vent pipe sleeve

Also included;

  • Snap on lid
  • ½” BS1212 part 2 ball valve
  • 4½” float
  • 22mm compression tank connector
  • 15mm x½” angles service valve
  • Insulation jacket
  • Installation instructions  


  • Length: 515mm
  • Height: 530mm
  • Width: 515mm

This product comes with a 12 month manufacturer’s warranty.

Below is a diagram of the installation required, showing where the inlet and outlets should be drilled.

Installation Diagram

The optional Poly A30 is a backflow and back siphonage prevention device also known as an AB air gap. It protects incoming mains water from contaminants which may have entered the cold water storage tank for processes which are carried out at the point of use or from water that has been added to the tank that isn’t mains supplied.

It is ideal for use in industrial situations such as in dentist’s surgeries (bodily fluids) and bakeries (yeast) or where water is fed to animals (disease).

It protects against the highest level, fluid category 5 risk laid down by the Department of the Environment and WRAS (Water Regulations Advisory Scheme).

The package includes:

  • A raised chamber which fits to the lid area of the tank
  • Extended ball valve arm which replaces the arm supplied as standard with the tank
  • Fixing screws
  • J4 Insulation
  • Seal

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