SUNGATOR End Cap, 3/4-Inch Push Fit PEX Cap Fittings, Push-to-Connect, No Lead Brass Plumbing Fittings for Copper, CPVC, Disconnect Clip Include (2-Pack) - Amazon.com
SharkBite 2-in PEX Crimp Brass Plug in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com
Amazon.com: SharkBite 1/2 Inch Push Cap, Pack of 4, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U514LFA6 : Everything Else
Poly Pex A Expansion Plug Stopper F-1960 3/4 End Cap [25 PCS] | Lead F – vigolix
Poly Pex A Expansion Plug Stopper F-1960 3/4 End Cap [25 PCS] | Lead F – vigolix
The Plumber's Choice 1/2 in. Plug End Cap Pipe Fitting Push to Connect PEX Copper CPVC Brass (5-Pack) 125UPSE - The Home Depot
25packs) 1/2 Inch PEX Bard Plug End Cap, Pex Pipe Crimp Fitting, Brass Barb Head Plugs in Plumbing Jobs - Amazon.com