This LTWFITTING Compression tube fitting is made of brass for durable. And it connects to tubing on one end and has an NPT Female connector on the
LTWFITTING Brass 7/8-Inch OD x 3/4-Inch Female NPT Compression Connector Fitting(Pack of 5) - Pipe Fittings
LTWFITTING 1/2 in. I.D. Hose Barb x 1/2 in. MIP Lead Free Brass Adapter Fitting (20-Pack) HFLF39188820 - The Home Depot
LTWFITTING 1/2 in. MIP x 1/4 in. FIP Brass Pipe Hex Bushing Fitting (20-Pack) HF1008420 - The Home Depot
LTWFITTING 2 in. FIP x 1/2 in. MIP Brass Pipe Adapter Fitting (5-Pack) HF10232805 - The Home Depot
Eastman 3/8 Inch OD Compression x 3/8 Inch OD Compression x 1/2 Inch FIP Multi-Turn Dual Handle Three Way Stop Valve, Brass Plumbing Fitting, Chrome, 04325LF - Yahoo Shopping
This LTWFITTING Compression tube fitting is made of brass for durable. And it connects to tubing on one end and has an NPT male connector on the
1/2 in. O.D. Comp x 1/2 in. MIP Brass Compression Adapter Fitting (20-Pack)
JMF 1/2 Pex X 1/2 Fip Adapter - LF6228108089802
The Plumber's Choice 1/2 in. x 3/4 in. 90° PEX A x Female Sweat
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LTWFITTING 1/4 in. x 1/4 in. Brass FIP Compression Adapter Fitting (25-Pack) HF664425 - The Home Depot