Grundfos UPS, UPS N Circulator Pump Variant:Grundfos UPS 32-80 N 180 which causes it to expand

which causes it to expand and effectively block the leak

It also has our unique pressure switch

Designed to fit most brands

XJ90P - max

Air Release Valve Kit

Grundfos UPS, UPS N Circulator Pump Variant:Grundfos UPS 32-80 N 180 which causes it to expandOur range of Dual Hot Water Circulators ensure seamless delivery of hot water through a ring main configuration. Grundfos UP,UPS N circulator pumps have corrosion free stainless steel pump housing and are recommended for domestic hot water recirculation and underfloor heating systems. UP, UPS N can be connected to an on off time switch to limit pump operation to periods when hot water is usually required.