APPROVED VENDOR BRASS UNION,3/4 IN,FNPT - Metal Pipe Fittings

3/4 Inch FNPT x 3/4 Inch Iron FNPT Class 300 Black Malleable Iron Pipe Union

DERPIPE Cast Pipe Fittings Union - 1 NPT Female Fitting Stainless Steel 304, Class 150

Union, Threaded Fittings, A105

Brass, Transition Union

Transition Union: Brass, 3/4 in Metal Side Nominal Pipe Size, Female, NPT, CPVC, Male, Spigot, Tan

3/4 FNPT Brass Union : Industrial & Scientific

BMI 1/4 Inch NPT Galvanized Union

Brass Pipe Fitting, Tee, 1/4 in. Female NPT, Couplings, Pipe Fittings, Fittings, All Products

SHARKBITE BRASS PUSH FEMALE REDUCING ADAPTER: This push-to-connect fitting allows you to make a transition between a pipe and an MNPT thread quickly

SharkBite 3/4 Inch x 1/2 Inch FNPT Adapter, Pack Of 6, Push To Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U092LF

Tectite 3/4 in. Brass Push-to-Connect x Female Pipe Thread Adapter FSBFA34 - The Home Depot