Coolant Hose Double Connector 3/8 NPT Can be used with coolants, fluids and air lines. Suitable for all wet machining, spark erosion.

1/2 to 3/8 Reducer Faucet Adapter - Compression Brass Pipe Fitting, 3/8 Male to 1/2 Male Supply Line Adapter for RV Kitchen Plumbing, Water Hose Pipe Connector with Rubber Washer, (2 Pack)

Beaded Hose Fittings and Parker Steel Beaded Hose Barb Ends For Coolant

ICT Billet -10AN Straight to 3/8 Hose Barb Double Fuel Pump Tank Fitting Bulkhead Adapter Fitting Hose Thread Fuel Oil Gas Coolant Connector Pipe End Plumbing Port Fluid Aluminum AN861-10-37A

Coolant Hose Adapters, Connectors & Sockets - MSC Industrial Supply

Dorman HELP! Heater Hose Elbow, Universal

1493-8D - Male Connector 1/2 Tube x 3/8 NPT with Spring - Brass DOT Reusable Air Brake Fittings

Chrome Steel Intake Manifold Heater Hose Threaded Connector 1/2 NPT 5/8 Barb Fitting for SBC BBC Chevy, Replacement Parts - Canada

ICT Billet 5/8 to 3/8 Inch Hose Barb Splice Coupler Reducer Repair Fitting Adapter Connector Radiator Coolant Intercooler Heat Exchanger Fluid Designed & Manufactured in USA Bare Aluminum AN627-10-06A : Automotive

PlumbShop Brass Hose Barb Adapter, 1/8-in MIP x 5/16-in ID Hose

Mastercraft Air Tool Connect Coupler & Plug Kit, 3/8-in NPT, 4-pc

Water Supply Line Braided Faucet Connector 3/8 Female Compression Thread x 1/2 I.P. Female Straight Thread,2 Pcs (1 Pair) 16 Inch/41CM, Faucet Supply Lines - Canada

Heater Hose

Aqua-Dynamic 3/8-inch Compression x 1/2-inch FIP x 16-inch Stainless Steel Faucet Flex Con

3/8 Hose Barb to M10 (9.89mm) Female Quick Connect, 90-Degree, Single Button