OPW - 634LPC-0400 - 4 in. Top-Seal Fill Cap
The OPW 634LPC low profile top seal fill cap is designed for tight installations where the clearance between the top of the fill adapter 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 adapter groove for a water and vapor tight seal. When engaged, the lockable cap adds only 1/2" to the final height of the adapter. The 634LPC can be used with the 4" OPW 633T, 633TE, 633TC, and 61SA series top seal fill adapters.