Poly Pipe Thread Adapter Fitting - MPT x MPT Reducer
LTWFITTING 1/4 in. FIP x 1/8 in. MIP Brass Pipe Adapter Fitting (5-Pack) HF1024205 - The Home Depot
Brass Pipe Fittings, Water Hose Adapter, G 1/2 Female to G 3/8 Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet, Pipe Connector with Rubber Washer,(2 Pack) - Amazon.com
0207-4-4 - Pipe Fittings and Port Adapters | Hydradyne LLC
Everbilt 1/2 in. Copper Pressure Cup x MIP Male Adapter Fitting C604HD12 - The Home Depot
1/4 to 3/8 Hose adapter fittings,brass stainless steel pipe connectors,Female male F/M thread adapter for hose pipe bath faucet - AliExpress
Earl's 961604: Steel AN to Pipe Adapter Fitting -4AN To 1/8" NPT - JEGS
Pipe Fittings | Fittings | All Products | Swagelok
Water Line Adapter, 4 PCS Pipe Fittings in 1/2" Female to 3/8" Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet Supply Hose, Stop Valve Adapter, Pipe Connector With Rubber Washer -