Amazon.com: 4 Pcs 3/8'' OD Compression Union Brass Compression Tube Fitting 3/8'' OD Compression Tube Connector Use with Copper, Aluminum, Plastic Tubing, Watertight Seal Waterlines or Air Pneumatic : Industrial & Scientific
Brass Compression - Poly Tubing Connector - Tube to Male Pipe - 5/16 In Tube x 1/8 In Male Pipe Thread (MPT) | Connector Tube to Male Pipe | Compression Fittings For