4 Gallon / 18 Litre Insulated Expansion Polytank (POLYRED)
4 Gallon / 18 Litre Insulated Expansion Polytank (POLYRED)
Product Code: RED4 PT
Capacity: 18 Litres / 4 Gallons
(minimum to waterline)
Length: 540mm / 21"
Width: 320mm / 13"
Height: 350mm / 14"

POLYTANKRED is unique and saves plumbers and installers valuable time. POLYTANKRED comes to the plumber or installer complete and is the perfect product to work alongside a domestic boiler.

POLYTANKRED is the only approved insulated fully assembled primary feed and expansion cistern on the market today.

This insulation is a high density specialist fibreglass. When tested in accordance with BS4213: 2004 gives improved figures of heat retention over all other methods of insulation.

Installation Guide (PDF): Click Here
Quantity: £66.00  (£79.20 inc Vat)   
Shipping: £15.00 (£18.00 inc Vat)
(Certain postcodes in Wales, Scotland, Highlands
and Islands may cost more. CLICK HERE for details)
YouTube Video Installation Guide: Click Here  
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Fully Assembled and Insulated Primary Expansion Polytank.

All required components are fitted in POLYTANKRED so there is no requirement to assemble. The installer has no need to drill and to clear up the mess made by drilling. There is no measuring required and overall POLYTANKRED can be installed in virtually no time.


Actual capacity shown
Actual capacity =float level water line
Nominal capacity= full capacity to top of tank
We are currently waiting for more information from our suppliers
please call 01643 703358 if you wish to discuss further.