PEX to Polybutylene Couplings

Rifeng to Polybutlylene Coupling makes PEX-to-Polybutylene connections for PEX tubing. These PEX fittings may be used with the stainless steel clamping system or the copper crimp ring system.

Manuals -


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  • 1/2" PEX x 1/2" PB Coupling (Lead Free) View Specs
    • SKU: H140500LF
    • Brand: Rifeng

    $1.39 / each

    $31.25 / box
    25 x $1.25

    In Stock! (566 Available) Ships in 24-48 Hrs
  • 3/4" Polybutylene Crimp Ring View Specs
    • SKU: 649-3
    • Brand: Sioux Chief

    $0.27 / each

    $25.00 / box
    100 x $0.25

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" PEX x 3/4" PB Coupling (Lead Free) View Specs
    • SKU: H140750LF
    • Brand: Rifeng

    $1.49 / each

    $34.75 / box
    25 x $1.39

    In Stock! (241 Available) Ships in 24-48 Hrs