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The John Guest PSEI202016E 1/2 x 3/8 CTS ProLock Reducing Coupling offers a reliable way to connect Copper, PEX, or CPVC pipes without requiring solder, glue, or tools. The ProLock fittings feature a collet with stainless steel teeth for secure pipe gripping and an EPDM O-ring for a permanent, leak-proof seal.
This coupling is designed for professional plumbers and is code approved for behind-the-wall installations, providing an audible click for secure locking and easy disconnection without tools.
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