Non Return Valves allow for a one-way flow of liquid through a PVC cone within the valve, with a stainless steel spring, ensuring a non return flow.
Please note: Our delivery rates only apply on orders to selected locations in the UK. We currently do not offer deliveries to the following locations:Northern Ireland, Scottish Highlands, Scottish Offshore, Grampians, Isle of Man, Isle of Wight, Scilly Isles, Jersey, Guernsey & Channel Isles
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