Trident hose - Nautivac San.Hose - 3/4" X 50' - 1480346. Smooth white vinyl for critical applications such as heads, bilge drains, scuppers, potable water use. FDA formulated. For use below water line. Hard vinyl helix reinforcement for excellent bend radius. Resists corrosion. Special compound to resist permeation. OPS Temp 10 to +140F. 3 Year warranty.. Specifics:. Inside Diameter - 3/4". Outside Diameter - 1". Length - 50'. Bend - 4". VAC - 28