marine sanitation hose

https://www.micmarineexhaust.com/products/marine-super-pvc-sanitation-hose-series-140.html

Marine Sanitation Hose

Marine sanitation hose is smooth off-white PVC with a vinyl helix. It contains an anti-fungus /bacterial agent to inhibit causing growth and exceeds the odor resistance of our popular 148 series. Marine sanitation hose is primarily used for the toilet to holding tank (self-draining lines) and holding tank pump out, for sink and shower drains, potable water fill, and heavy-duty bilge discharge. Excellent bend radius. The Marine sanitation hose is very similar to the familiar, white, Series 148 sanitation hose except for 2 characteristics — it is light gray in color, and it is not rated for carrying potable water. Otherwise, it has the same heavy wall, flexibility, and odor permeation resistance characteristics.

-Not for potable water applications

-Do not use ethylene glycol-based anti-freeze in hose.

-Marine sanitation hose is resistant to mild chemicals, saltwater, and permeation.

-Tube & filler is a special FDA PVC resin developed for extreme flexibility.