ZoomLock PUSH Coupling, 1/4 Inch, HNBR Seal, R-410A Optimized PK-PZKP-C4-HNBR

The ZoomLock PUSH Coupling (PK-PZKP-C4-HNBR) is a Parker push-to-connect refrigerant fitting designed for high-pressure HVAC/R applications and optimized for R-410A systems. This 1/4 inch copper push-to-connect coupling enables secure refrigerant line connections without brazing or specialized tools, helping streamline installation and service workflows. Built with a refrigerant-grade copper body and HNBR sealing elements, it is rated for continuous operating pressures up to approximately 700 psi, supports vacuum applications to 500 microns, and is suitable for operating temperatures up to around 250°F per published manufacturer data. This fitting is intended for approved residential and light commercial refrigerant line installations. Proper job-fit verification requires confirming tubing size compatibility and following Parker’s published installation procedures.