Description
The OPW 634LPC-0400D Diesel Low Profile Fill Cap 4IN is designed for tight installations where the clearance between the top of the fill adaptor and the underside of the spill-container cover is limited. The rugged iron lever provides a positive cam-action that seats the cap firmly in the adaptor groove for a water and vapor-tight seal. When engaged, the lockable cap adds only 1/2" to the final height of the adaptor.