

1″ to 3/4″ PEX Coupling
Additional information
Ready for delivery in 4–5 weeks
The 1″ to 3/4″ PEX Coupling is a reducing fitting designed to transition between 1-inch and 3/4-inch PEX tubing in potable water or hydronic heating systems. Made from durable materials and engineered for leak-free performance, this coupling is ideal for adapting line sizes during new installations, repairs, or system modifications.
Key Features:
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Size: 1″ x 3/4″ – connects 1-inch PEX pipe to 3/4-inch PEX pipe
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Material Options: Available in lead-free brass or high-strength poly (poly-alloy) for corrosion resistance and long-term reliability
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Application: Used to reduce pipe size within a PEX water distribution system
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Installation Compatibility: Works with PEX crimp rings, cinch clamps, or push-fit systems (depending on model)
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Standards Compliance: Meets or exceeds ASTM F1807 / F2159 / F877 and CSA B137.5
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NSF Certified: Approved for potable water and radiant heating systems
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Temperature & Pressure Rated: Suitable for both hot and cold water applications
Applications:
The cost varies according to your country of residence.
Once you receive the order at home, you have a period of 14 calendar days to manage the return or report an issue for free through your online account. Read more on our Shipping & Returns page.