I have 1 Fat Sac left and a bunch of Fat Sac bag fittings.
1 500 lb. bag (Old Style Fat Sac) cylindrical shape; 2 ports on top; $50;
separate bladder with super-tough protective bag;
bag has handles with side-lock buckles, 2 zippered pockets & 2 tie-down points;
this design makes the sac useful to secure above deck;
comes with 1 plug and 1 quick-twist fitting w/ cap (works with Tsunami pump);
the included plug has the air vent feature.
I also have a variety of Flow-Rite, FatSac, hull and pump fittings to plumb the bags to your boat's ballast system or help build a system. See other photos. Prices are half of online or retail price. Further discount if you buy 10+ pieces.
Do NOT contact this poster with unsolicited services or offers.