Mueller A17936 Check Valve 318172-701 this specific part number is

this specific part number is designed for mid-to-high efficiency models

and G61MP series furnaces

and the Rheem-Ruud 61-21922-39 TXV is the specific OEM solution for R-22 systems requiring a 3/8" x 3/8" configuration

Integrating the York spacer assembly during a motor swap or fan deck overhaul is critical for ensuring the longevity of the drivetrain

it includes an internal check valve for seamless reverse flow in heat pump cycles

Mueller A17936 Check Valve 318172-701 this specific part number isThe Mueller A17936 is a professional grade 1 2" Magnetic Check Valve engineered for heavy duty refrigeration and air conditioning systems. Featuring a hermetically formed solid copper body, this valve ensures zero leak potential while maintaining structural integrity under high pressure conditions. Unlike traditional spring loaded variants, its magnetic closure mechanism provides a more positive seal with a significantly lower pressure drop, making it