5/8" x 5/8" Sharkbite Coupling

Prepare carefully: - Carefully deburr copper tube ends. Burrs will damage O-rings and cause leaks - Do not use steel wool to shine copper pipe ends. While the copper will look nice, those tiny scratches made by abrasives will cause leaks. Further: most steel wool will leave iron particles behind to cause rust. Rust will cause leaks. Carefully examine pipe ends for flat spots. Flat spots may fail to seal, causing leaks. The Sharkbite instructions said to push the pipe into the fitting about 1 inch for these 1-inch diameter fittings. The true depth is 1.25" according to my digital caliper. - The fittings were not supplied with a removal fixture. Remember to order one separately. They are needed for removing the plastic inserts that guide PEX tubing if you're using that (I was using copper) or for separating a joint if that becomes necessary during assembly. Luckily, I was able to remove the plastic inserts without the removal tool and did not need to rework any sections due to mismeasurement. Otherwise: - Very, very high quality workmanship overall, and especially on the brass. Compare the quality of the threads to the threads on an average copper fitting and you'll never want to see a copper fitting again. I used copper tubing and Sharkbite fittings to install a water filter manifold to my 1-inch cold water service line.

I needed an additional one and had to make a expensive purchase at a local store. They carried a new one called max. It doesn't have the center white part and went on a lot easier. This one is fine but I preferred the newer model. It is also supposed to have less resistance to flow.