Watts Brass Tubular 3518-10 1/2 Inch Stackable Elbow 5pk

Product Description

The WATTS BRASS TUBULAR 3518-10 is a 1/2-inch quick connect stackable elbow fitting designed for fast, tool-free pipe connections in residential and light commercial plumbing systems. The stem end design allows technicians to make connections without cutting small pieces of pipe, simplifying repairs and new installations. Push-to-connect construction holds up to 250 psi, meeting the pressure demands of typical potable water supply lines. Each fitting is a single piece with no separate parts to assemble or misplace. Licensed plumbers and skilled trade installers use this fitting where speed and reliability matter.

This fitting is suited for potable water distribution systems in residential and commercial construction. Its code-approved design qualifies it for behind-wall installations without access panels and for direct in-ground burial, making it useful in slab work, retrofit plumbing, and hard-to-reach chase installations. The 3518-10 comes in a pack of 5 units, which is practical for service calls and rough-in work where multiple connections are required at once. It serves as a direct replacement for Qest and Flare It type fittings.

Key Features

• Push-to-connect design holds up to 250 psi without clamps or tools
• Stem end allows connections without cutting short pipe sections
• Single-piece construction eliminates loose or missing components
• Code approved for behind-wall no-access and direct in-ground burial installations
• Certified to NSF-14 and NSF-61 for potable water contact
• Listed and approved to CSA/ASTM and UPC standards

Compatibility

Designed as a direct replacement for Qest and Flare It type fittings in 1/2-inch potable water plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the IPC or applicable regional code. Shut off the water supply and relieve system pressure before making or breaking any connections. Ensure pipe ends are cut cleanly and deburred before inserting into the push fitting to maintain a proper seal. Verify burial depth and backfill requirements with local code when using in direct in-ground applications.