Crown Engineering H24-34 Spiralink Coupler 340793-762 it provides the necessary pressure

it provides the necessary pressure regulation for Beckett Linkageless systems and compatible burner assemblies

such as the T-400 series thermostats and H-100 series humidistats

including the FTX850

which provide superior pressure stability across variable flow rates

Crown Engineering H24-34 Spiralink Coupler 340793-762 it provides the necessary pressureThe Crown Engineering H24 34 Spiralink Coupler is a heavy duty single spring replacement designed to eliminate the common failure points of multi spring OEM components in hydronic circulators. This 5 8" x 5 8" clockwise (CW) pump coupler features a unique spiral torsion design that provides 3 dimensional flexibility, allowing the system to absorb high start up torque and compensate for minor shaft misalignment without the risk of shearing. Engineered