Proline Series 3/8-in Threaded Cap Fitting in the Brass Fittings department at Lowes.com
SUNGATOR 1/2 Inch Cap, 1/2" Pushfit Cap, No Lead Brass Plumbing Fitting 1/2" End Cap, Cap Off PEX, Copper, CPVC, with 1 Disconnect Clip, Pack of 12 - Amazon.com
LTWFITTING 1/2 in. Brass Compression Cap Fitting (10-Pack) HF61CAP810 - The Home Depot
Fitting - End Cap - 1/2" NPT Female - Stainless Steel
Fitting - End Cap - 1/2" NPT Female - Stainless Steel
Gas Pipe End Cap Pipe Fitting , Round Water Line Cap Malleable Iron Material
Cap | Fitting Service
Fitting it Just Right: How Tight Should a Hat be - Delusion MFG
Pipe Fitting by Types - Types of Pipe Fittings, Thepipefittings.com
Era UPVC/PVC/Plastic/Drainage Fittings Vent Cap for DIN Standard Drainage Fitting - China Vent Cap, Fitting | Made-in-China.com
Steel Pipe Caps Socket Weld Cap & Threaded Cap & Butt Weld Cap | ZIZI