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SharkBite 1/2 Inch Polybutylene Transition Coupling, Pack of 6, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U4008LF - Pipe Fittings - Amazon.com
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10 PIECES XFITTING 1/2" PEX X 1/2" PB (POLYBUTYLENE) SPLICING COUPLING WITH RING, REPAIR KIT, BRASS - Amazon.com
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SharkBite 1/2-in PEX Crimp x 1/2-in Polybutylene Brass Transition Coupling in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com
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SharkBite 3/4 Inch Polybutylene Transition Coupling, Pack of 6, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U4016LF - Faucet Parts And Attachments - Amazon.com
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SharkBite Crimp Transition Low Lead 1/2 In. Polybutylene, Brass PEX Coupling - Bliffert Lumber and Hardware
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