Earl's Oil Filter Adapter - Bypass - 3/4-16 Center Thread - 1/2 in NPT Female Inlet - 1/2 in NPT Female Outlet - 2-3/4 in O-Ring - Black 4101XXSBK while glycerin-filled gauges feature a

while glycerin-filled gauges feature a stainless steel housing helping to dampen the effect of pulsation and pressure spikes of the gauge needle

5/8" diameter stainless steel sleeve inserts into pan or tank and secures with a welded on 1/2"NPT brass screw-in fitting

3/8 in NPT Female to 3/8 in NPT Female

easy access 12-point designs

25-inch (rear) DOM steel tubing

Earl's Oil Filter Adapter - Bypass - 3/4-16 Center Thread - 1/2 in NPT Female Inlet - 1/2 in NPT Female Outlet - 2-3/4 in O-Ring - Black 4101XXSBK while glycerin-filled gauges feature aEarl's Billet Aluminum Oil Filter By Pass Adapter 1178 Spin On Oil Filter Bypass Adapter Aluminum Natural 3 4 16" Thread 1 2" NPT Inlet OutletEngine Oil Filter Adapter Quick and Easy To Install Product Description: Oil Filter Adapter Bypass 3 4 16 Center Thread 1 2 in NPT Female Inlet 1 2 in NPT Female Outlet 2 3 4 in O Ring Aluminum Black Anodized Sold Individually Earl's Performance Products was founded by Earl Fouts in 1955 in Lawndale, California.