3/4" Blu-Lock Cap 31380

Pushed this cap onto an HDPE line and it sealed tight right away, no clamps or waiting around for glue to cure. The stainless steel teeth really bite in, and I like that the fitting can still rotate without leaking.

I’ve used these caps on a couple of sprinkler lines now, and the stainless steel teeth really do bite down securely—no leaks even at full pressure. Being able to pressurize right away without waiting for glue or clamps is a huge time saver, and the O-ring seal feels solid.

Took about ten seconds to push onto the HDPE pipe and it sealed perfectly, no clamps or glue anywhere in sight. I pressurized the line right away and not a single drip. Beats waiting around for cement to cure.