Brass Compression Fitting 15mm Brass Blanking Stop End Cap fitting Copper Pipe | eBay
sourcingmap 25mm X 1mm Copper Pipe Tube End Cap Cover Plumbing Fittings, Beige 2 Pieces : Amazon.co.uk: DIY & Tools
Aqua-Dynamic Fitting Copper Tube Cap 1/2 Inch | The Home Depot Canada
MECCANIXITY Copper End Cap Pipe Fitting Sweat Plug Connection 25.4mm(1") ID for Water Pipe Plumbing, HVAC, Refrigeration System, Pack of 4 - Amazon.com
Everbilt 3/8 in. Copper Pressure Tube Cap Fitting C617HD38 - The Home Depot