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it is specifically indexed for P-K equipment
this model is the designated updated version
This metering piston provides a reliable solution for systems specifically designed for fixed-flow regulation
OEM Durability: Engineered for extreme heat resistance to resist carbon buildup and oxidation longer than aftermarket alternatives
Optimized Performance: Delivers a consistent 850 RPM at 1/4 HP
Resideo TK30PV100NK Combo Trim Kit 319852-301 it is specifically indexed forThe Resideo TK30PV100NK Combo Trim Kit is a comprehensive, field ready solution engineered for professional boiler change outs and hydronic system upgrades. This 4. 4 gallon kit integrates critical components into a high performance assembly, featuring a hydronic expansion tank, a 1 inch NPT SuperVent air eliminator, and a NK300S boiler feed combination valve. Designed for closed loop heating systems, the ASME compliant diaphragm expansion tank