Stainless Steel Pipe Fitting, Adapter, 3/8 in. Female NPT x 3/8 in. Male ISO Tapered Thread | Adapters | Pipe Fittings | Fittings | All Products | Swagelok
Amazon.com: Legines Brass Pipe Fitting, NPT Adapter 1/4" Female to 1/8" Male Reducing Adaptor 1200psi High Pressure (Pack of 2) : Industrial & Scientific
Female Flare (1/4 FFL) to 1/4" Male NPT Adapter
1" NPT Female X 1" BSPP Male Brass Adapter (FNPT X BSPP)