Value Collection - Black Cap: 2″ - 53579363 - MSC Industrial Supply
6 Pieces 1.5 Inch Sanitary Fitting Cap Stainless Steel 304 Sanitary End Cap Pipe Fitting Clamp Solid End Caps Blind Tri Caps Clamp for Dairy Products Food Wine Beverage Cosmetics Engineering: Amazon.com:
The Plumber's Choice 1 in. x 1 in. L Malleable Iron Pipe Cap Threaded Fitting 150 lbs. Application Black Pipe Cap (10-Pack) 0100BMCP-10 - The Home Depot
Southland 1/2 in. Black Malleable Iron Cap Fitting 521-403HN - The Home Depot