Sunpro CP7556 Oil Pressure Tee Adaptor Kit - Brass Corrosion resistant Tee adaptor dimensions measure 1/8"l x 1/8"w x 1/8"h Can be used on mechanical or oil pressure gauges Can operate on both 1/8" national pipe thread warning light sender and 1/8" national pipe thread mechanical or electrical oil pressure gauges Brass component makes it highly malleable