

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The SHARKBITE/CASH ACME UC518LFA is a 3/4 inch lead free brass barb insert plug designed for pressure testing 3/4 inch cross-linked polyethylene (PEX) tubing systems. The barbed end seats into 3/4 inch PEX pipe and is secured using cinch clamps with a cinch tool or copper crimp rings with a crimp tool. Once installed, the line is immediately testable to well over 100 psi, making it a reliable choice for pre-commissioning leak checks on potable water systems. Licensed plumbers and pipefitters typically install this fitting during rough-in inspection stages before walls are closed.
This plug is suited for residential and light commercial plumbing applications where PEX tubing is used for potable water distribution. It is compatible with 3/4 inch PEX pipe secured with TV 608-826 cinch clamps and TV 608-743 cinch tool, or standard copper crimp rings and crimp tool. The lead free brass construction meets low-lead requirements enforced in California and Vermont, making it appropriate for use across jurisdictions with strict lead content regulations. Sold in a package of 12 units.
Designed for use with 3/4 inch cross-linked polyethylene PEX tubing. Secured using TV 608-826 cinch clamps with TV 608-743 cinch tool, or copper crimp rings with a compatible crimp tool.
Installation is performed by a licensed plumber following applicable IPC and local plumbing code requirements. Shut off the water supply and depressurize the line before fitting removal or replacement. Ensure the barb end is fully seated into the PEX pipe before applying the cinch clamp or crimp ring. Do not exceed the pressure rating of the connected PEX tubing system during testing.
Thanks for subscribing!
This email has been registered!