M METERXITY Pipe Fitting Tee - 3 Way Union Fitting, Nickel-Plated Copper Pipe Fitting, Apply to Air Water Gas Pipe, (G1/2 Male Thread, Silver) - Amazon.com
ANCIMOON 3/4'' Straight Air Line Fittings, 3/4'' Tubing x 1/2'' Male NPT Threads Adapter Fittings, Brass-Nickel Plated, Seal Taped Needed, 1-PC For Garage Shop Compressed Air Piping System - Amazon.com
Copper-Nickel Alloy Supplier & Copper-Nickel Products | Arbor/Metals Inc.