ecopas Differential By-Pass Valve. WRC Approved

Valves for use on heating systems where control is by zone or thermostatic radiator valves. Fitted between flow and return permitting circulation to continue through boiler, and helps prevent unnecessary cycling of boiler.

Ref. No.


Box Qty


519500 3/4"* 50 29.35
519700 1 1/4" 10 77.04
51950G 22mm compression 10 26.00

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