CMA 1/4" x 1/4" x 1/4" Expansion Valve common-universal-parts/ Replaces: R_518

Replaces: R_518

so compare against your old tube's shape before final tightening

Coldwater connector: 3/8" John Guest press fitting (hot water damages the seals)

and it accepts two o-rings

CMA 1/4" x 1/4" x 1/4" Expansion Valve common-universal-parts/ Replaces: R_518CMA 1 4" x 1 4" x 1 4" Expansion Valve This three way expansion valve is specified for the CMA Argenta 3 group model. Don't confuse it with the more common 1 4" x 1 4" x 3 8" version used elsewhere in the CMA lineup. SPECIFICATIONS Ports: 1 4" x 1 4" x 1 4" COMPATIBILITY Fits: CMA Argenta 3 group Not to be confused with: the 1 4" x 1 4" x 3 8" version INSTALLATION A moderate DIY plumbing job for anyone comfortable working on the expansion circuit.