Amazon.com : 4 Way Flat Edge 1 3/8" Canopy/Batting Cage Fitting (FVF4) - Fits EMT Pipe or Chain Link Fencing Top Rail That has an Outer Diameter of 1 5/16" : Patio, Lawn & Garden
Amazon.com: Anvil 8700135059, Malleable Iron Pipe Fitting, Reducer Coupling, 3/8" x 1/8" NPT Female, Galvanized Finish : Industrial & Scientific
USA Industrials - Galvanized Pipe Fittings; Fitting Type: Union; Fitting Size: 1/8; Material: Galvanized Iron; Fitting Shape: Straight; Thread Standard: NPT; Liquid and Gas Pressure Rating (psi): 150; End Connection: Threaded - 08921629 - MSC ...