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The RWC U3088FLEX18LF is a flexible braided water heater connector designed to link a water heater to the supply line in residential and light commercial plumbing systems. Constructed from stainless steel braiding, it connects via a 3/4-inch female NPT fitting on one end and a SharkBite push-fit connection on the other, eliminating the need for soldering or compression fittings at the SharkBite end. At 18 inches in length and rated to 200 psi, it accommodates standard water heater rough-in spacing while handling typical residential supply pressures. Licensed plumbers and pipefitters are the primary installers of this connector.
This connector is suited for residential water heater installations where a flexible, corrosion-resistant supply line is required. The SharkBite push-fit end speeds up rough-in and replacement work on both copper and compatible plastic supply tubing. The FNPT end threads directly onto standard water heater inlet and outlet ports. It is commonly used during new water heater installations and service replacements where the existing rigid supply connections are being updated.
Designed as an OEM-style replacement flexible connector for residential and light commercial water heater installations using 3/4-inch NPT supply connections and SharkBite-compatible supply tubing.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and drain the line before removing any existing connector. Thread the FNPT end onto the water heater port and tighten to hand-tight plus a wrench turn — do not overtighten, as this may damage the fitting. Ensure the SharkBite end is inserted fully onto clean, burr-free tubing before restoring pressure and checking for leaks.
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