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The LARSEN SUPPLY CO., INC. 10-1374 is an 18-inch stainless steel flexible water heater connector designed for residential and light commercial water heater installations. Built from 304 stainless steel with chrome plated brass nuts, this connector links the water heater inlet or outlet to the supply line. The no-kink design allows the hose to flex and route in any direction without restricting flow or compromising the line. Plumbers and water heater installers rely on this type of connector to complete final water line connections quickly and with a reliable seal. At 2.62 pounds, the connector is robust enough for standard residential service conditions.
This flex connector is suited for water heater rough-in and replacement work in both residential and light commercial settings. It is appropriate for hot or cold water supply connections at the water heater, where a flexible line is needed to bridge minor alignment differences between the tank fittings and the rigid supply piping. The 3/4 inch x 3/4 inch end connections match the most common water heater supply port size found in residential construction. The 18-inch length provides enough working slack to accommodate typical tank-to-supply alignments without excess material.
Designed as an OEM-style replacement flexible connector for residential and light commercial water heater installations using 3/4 inch supply connections.
Installation is typically performed by a licensed plumber. Shut off the water supply and drain pressure from the line before removing the existing connector or making new connections. Hand-tighten the brass nuts first, then snug with a wrench — do not overtighten, as this can damage the brass seat. Verify local plumbing code requirements, including IPC provisions, for approved flexible connector materials and maximum lengths before installation.
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