2 x 1/2" filling & drain points. Over 25 years heating design experience.
underfloor heating manifold 3 port with Grundfos UPM3 pump/mixer
underfloor heating manifold 2 port with Grundfos UPM3 pump/mixer
underfloor heating manifold 4 port with Grundfos UPM3 pump/mixer
underfloor heating manifold 10 port with Grundfos UPM3 pump/mixer
underfloor heating manifold 8 port with Grundfos UPM3 pump/mixer
underfloor heating manifold 7 port with Grundfos UPM3 pump/mixer
