ASTM Air Conditioning Copper Pipe 7/8 22mm 16mm 15mm 10mm Air Conditioner Copper Tube for Connecting Fittings on Sale - China Copper Tube, Copper Pipe | Made-in-China.com
16mm x 15mm Brass Compression Reducer for Copper Pipe Plastic Pipe Connector | eBay
Compression 15mm to 16mm Adapter Coupling - 24401516
elbow-reducer-16mm-pex-pipe-to-15mm-copper-pipe
16mm - 1/2" MTA Terminal Adaptors - Compression Fit | The Floor Heating Warehouse