The Racetech Oil Pressure Gauge is an accurate and reliable 52mm mechanical gauge designed for motorsport use. Available with a black face and bezel with a white back light and with scale options of 0-100 or 0-160 Psi.The back of the gauge has a 1/8" BSP 'nipple' flat seat fitting to allow the fitment of a pressure tube which is sold separately. There is also the option of having a 1/8" BSP cone fitting which has a concave seat to allow an AN (JIC) adaptor to be fitted enabling the gauge to be plumbed in Aeroquip hose. Adaptors are sold separately (Goodridge part number GDR321-03P).