10 Pack 1/2 x 1/2" Male NPT Connector Brass Compression Fitting for 1/ – compressor-source
Everbilt 1/2 in. OD Compression Brass Coupling Fitting 800939 - The Home Depot
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
3/4" Compression Water Meter Coupling, LEAD FREE brass, Swivel nut x C – Utility Technologies