12 Gallon Plastic Marine Water or Waste Holding Tank

Manufacturer Part
Rectangular marine holding tank made of FDA approved polyethylene plastic resin, this tank is perfect for septic and waste uses like marine toilet (head) holding tanks, freshwater, greywater and blackwater situations.

Accuracy of the images may vary. Refer to the specifications table to ensure precision.

12 Gallon Boat Holding Tank - Septic & Waste

 RH-3W, 12 gallon marine holding tanks can be used for marine toilet (head) holding tanks, freshwater, greywater and blackwater situations.

  • Polyethylene tanks generally retain less odors than aluminum or stainless steel tanks.
  • Rotomolded using FDA approved polyethylene plastic resin.
  • Tank dimensions can be rotated to meet your needs.
  • Marine Holding Tanks can be ordered 3 different ways to fit your needs: a Standard Holding Tank Fitting Package, a blank tank with no fittings installed, or a custom tank with fittings installed per your request (Any Location, Any Size)
  • Standard Holding Tank Fitting Package includes: a 1 1/2" Inlet, a 1 1/2" Outlet, and a 1/2" Vent
Technical Drawings
Fitting Dwg

Key Specs
Gallon Capacity 12
Lid Size 5"
Length 30"
Width 14"
Height 9"
Weight 9lbs
Material Polyethylene
Manufacturer Ronco Plastics
Manufacturer Part Number 3W
Warranty 3 years years
Disclaimers Any modification to the fittings installed on this tank will result in additional cost. Most tanks do not come with fittings pre-installed. Images may include a generic depiction of a tank as it would look if fittings were included.
Shipping Height 9"
Shipping Length 31"
Shipping Weight 9lbs
Shipping Width 14"
Ship Class UPS