Waste Holding Tanks

All waste holding tanks are molded of a seamless one piece noncorrosive polyethylene that meets Coast Guard regulations.  Each holding tank includes one 1/2" vent, one 1-1/2" inlet, and one 1-1/2" outlet.  All fittings are female NPT thread.  To specify the fitting locations, print the drawing of the tank you need, indicate where you want each fitting, then email or fax to (813) 741-3988 after you place your order.  Additional fittings and an optional 3" cleanout are available, just send us an email for pricing and delivery.  Hose barb fittings are available in the Hose fittings & adaptors section.