Improved Racing ENV-150 Dual Inline Oil Sensor Manifold Block, 6AN Universal sensor manifold accommodates two 1/8" NPT sensors or oil supply lines for a turbo or supercharger Features two female -10AN O-ring boss ports and a large diameter passage that allows for high volume flow and minimal pressure drop. Includes two black anodized aluminum fittings for -6AN lines Two mounting holes for bolts up to 8mm (5/16") in diameter 6061-T6 billet aluminum construction and black anodized finish Made in USA. Lifetime manufacturer's warranty