Perko Combination Gas Fill Tank Vent f/2" Hose - Diesel [0577D00CHR] Brand_Scotty the advantage of Vortex-Vac is

the advantage of Vortex-Vac is that one does not need to depend on the vacuum generator pump that tends to run for about 45 seconds to generate the vacuum

buoys and docks a breeze

Fits panels up to 1" thick

Fade/smudge-proof

and easy to clean

Perko Combination Gas Fill Tank Vent f/2" Hose - Diesel [0577D00CHR] Brand_Scotty the advantage of Vortex-Vac isCombination Gas Fill & Tank Vent for 2" Hose Diesel Features: Chrome Plated Bronze Straight Neck Integral Tank Vent with Flame Arrestor O Ring and Integral Retainer on Cap Included Ground Wire Required Specifications: For Fuel Hose: 2" For Vent Hose: 5 8" Length of Neck: 3 5 8" Screw Size: #8