2x 1/2" filling & drain points. Over 25 years heating design experience.
underfloor heating manifold 4 port with Grundfos UPM3 pump/mixer
Underfloor Heating Manifold - 4 port Stainless Steel
underfloor heating manifold 4 port
4 Port Brass Underfloor Heating Manifold with A Rated UPM3 Auto Flex Pump, Blending Mixing Valve,16mm Pipe Connection and Ball Valves with Gauges for Water Underfloor Heating System
Daaxing Underfloor Heating Manifold Flow Meter,Visual Flow Monitoring Regulator For Underfloor Heating Systems,Regulator Optimizing Heat Distribution Underfloor Heating Manifold Flow Meter (1/2,10PCS)
Daaxing Underfloor Heating Manifold Flow Meter,Visual Flow Monitoring Regulator For Underfloor Heating Systems,Regulator Optimizing Heat Distribution Underfloor Heating Manifold Flow Meter (3/8,2PCS)
