Watts 3-Pack 3/8-in Sleeve Fitting in the Brass Fittings department at

Watts Brass I.D. Barb Splicer (3/8)

PlumbShop Brass Compression Union Tube, 5/16-in OD, 1-pk

EVERLOC+ Compression-sleeve System, Mechanical & plumbing

PlumbShop Brass Needle Valve, 3/8-in OD, 1-pk

Shop for Brass Fittings & Pipes Online

Watts Brass Fittings at

Proline Series 3-Pack 1/2-in Compression Nut Fitting in the Brass Fittings department at

Daptemn 36 PCS Brass Air Brake Line Fitting Assortment Kit 1/4 3/8 1/2 Inch DOT Air Line Quick Connect Fittings, Push to Connector NPT Thread Tube for Replace Air Line Fittings : : Electronics

LTWFITTING 3/8 in. O.D. Comp x 1/8 in. MIP Brass Compression Adapter Fitting (5-Pack) HF686205 - The Home Depot

Western Enterprises - AW-407 - 90° Inert Gas Fitting - RH Male - B-Siz – Canada Welding Supply Inc.

Clippard

Ideal for low to medium pressure applications, these 3/8 in. Brass Compression Nuts are perfect for use with brass sleeves. The brass construction is

Everbilt 3/8 in. Brass Compression Nut Fittings (3-Pack) 801159 - The Home Depot