Fatsac - Automatic Venting Cap - W772 - Heyco Membrane $7.99 Default Title - $7.99 Quantity This product is currently sold out. Please fill in the form below if you'd like to be notified when it becomes available. Description Fatsac Part# W772 This fitting allows the air to bleed from the bag, but not water. Made from 6/6 Nylon Proprietary Heyco membrane inside Great for fully automated systems in boats
