If you do not have direct access through an open hatch from your compressor to the water to run your 100′ common downline, there are a few options for built in hawse fittings.
This simple low profile thru hull access kit runs a line from the compressor to an exterior outlet that allows you to simply snap your common downline in when your ready to dive while keeping the clutter of the hose off your boat deck.
This package comes complete with 10 foot Brownie’s THIRD LUNG air breathing yellow hose, black thru hull fitting and Male to Male adapter to common downline. 10 foot hose connects the Accumulator Tank to black thru hull fitting. If there is more than 10 feet between your accumulator tank and tht thru hull outlet access point, the yellow hose can be extended to any length.