1Standard 1/8in thread size, perfectly suitable for 1/8in BSPT sensors, ensures precise fitment. 21/8in NPT tee, used to tap into oil pressure sensor for turbo oil supply or aftermarket oil pressure gauge. 3Allowed to tap uncommon 1/8in NPT sensors, and provide more common 1/8in NPT outlets for turbo oil supply lines or aftermarket gauge. 4Adopt high quality brass, equipped with gaskets, ensures good sealing performance, corrosion resistant and durable. 5Manufactured according to the original production specifications, in line with strict quality standards. Item Type: Oil Pressure Gauge AdapterMaterial: Brass Color: Gold Application: Install standard 1/8 NPT oil pressure switch 1 x Oil Pressure Gauge Adapter 1 x Gasket