Silver RV water inlets bring a clean look and an aluminum flange that resists corrosion, even in salt air. These are generally universal city water connections, mounting up when your plumbing and connections match. Upgrading from plastic is common; metal check valve options can be an improvement, though some installs may require enlarging the hole, and trapped water can freeze and burst the back of a plastic water inlet.
Match the fitting type, the cutout size, flange diameter, mounting hole spacing, and valve depth to your opening. Some installs drop right into the existing cutout, while others need the hole enlarged for a slightly larger flange. Check the specs and measure your panel before drilling. If replacing an old inlet, verify thread size and orientation to your plumbing.
Yes, if the silver flange is aluminum it's well-suited for coastal conditions. Aluminum is one of the most rust resistant metals, and even in saltwater aluminum basically does not corrode at all. Confirm the flange material in the specs. Rinse after salt exposure and use corrosion-resistant fasteners to help minimize galvanic issues.
Yes, a metal check valve can be an improvement over fragile plastic parts and help reduce leaks. Verify the valve direction and test it after install to ensure it "checks." Use thread sealant on connections and flush debris before hookup. If a valve doesn't seal, recheck orientation and fittings before finalizing the install.
Drain the line between the internal anti backflow valve and your tank flush valves to avoid freeze damage. Water trapped there can freeze and burst the back of a plastic inlet. Winterize per your RV's directions, and add a cap to help keep out moisture. In cold regions, consider metal-bodied components for added durability.
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