L-Nipple Fumoto's L series valves are specifically designed for heavy duty trucks, construction equipment, and industrial engines. The L series valve's removable 90° brass elbow joint nipple allows for easier oil changes in hard to reach and awkward locations. The adjustable brass collar allows 360° positioning of the nipple. And like all Fumoto valves the L series enables mechanics and end users to sample oil cleanly and easily even with the engine running. Constructed of forged brass and stainless steel to exacting Japanese specifications, L series valves are designed to provide a lifetime of dependable and reliable service.