The Sea-Dog Keyless Fills are entirely molded from Fiberglass Filled Nylon and do not require grounding to the
boat electrical system as required on all deck fills using metal components. Each deck fill has a special cap with a
built-in key for easy cap removal. The hinged key can be locked in the upright position to open or close the fill and
then recessed into the cap for a flush surface. In addition the caps are molded in special colors to help prevent the
dangerous and costly problems caused by placing fuel in water or waste tanks or vice-versa. Available in custom
colors for large volume orders. The cap threads are 1-1/4" - 11-1/2 NPSM - Straight. Gas, diesel and water caps
include attachment chains. Black caps with all markings are available through special order. Note: Will not work
with pressurized oil injection systems. Connect deck fill to reservoir via hose (not included).