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Best Price Guarantee
on All Pumps
Free Delivery to UK
For orders above £100
Up to 2 Year Guarantee
on Many Products
98% gave us a 5 Star Rating
POA
Traditional water heating systems rely on relief valves to allow water to be released from the hot water tank when pressure becomes too high, which is highly inefficient. ThermoWave™ expansion tanks conserve water and energy by temporarily absorbing expanded water volume instead of allowing it to be vented through the relief valve.
ThermoWave™ vessels are constructed with a virgin polypropylene liner combined with a high grade butyl diaphragm.
GWS expansion vessels are quality tested at several stages during production to ensure the structural integrity of every tank which guarantees a high quality, reliable vessel.
Specifications ►Maximum liquid temperature: 90°C ►Maximum working pressure: 10 bar (150psi) ►Maintenance free ►5 Year Warranty ►Suitable for potable water ►WRAS Approved
UK Delivery Costs Zone 1 - England, Wales and Southern Scotland
Standard Delivery (3-5 working days) - Orders Under £100 - £7.50 / Over £100 - FREE
Express Delivery (1-2 working days) - £15
Premium Next Working Day (delivery before 13.00) - £26
Zone 2 - Scottish Highlands & Islands, Northern Ireland, Isle of Man, Scilly & Channel Isles
Standard Delivery (3-5 working days) - Orders Under £100 - £15 / Over £100 - FREE
Express Delivery (2-3 working days) - £15
Orders must be placed before 14.00 for express and premium next day delivery.International Delivery
We offer a first class worldwide export service. Please contact us here for a price.
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