4.25 Gallon Marine Holding Tank

SKU: RH-B525
Fitting Package:** Required Fields
Please select an option
Part Number: RH-B525
Capacity: 4.25 Gallons
Dimensions: 26"L x 11"W x 7"H
Ships From: Tustin, CA  
Technical Drawings
Fitting DwgFitting Instructions Video

4.25 Gallon Marine Holding Tank - Ronco Plastics

RH-B525, 4.25 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)

*Mounting straps are not offered on marine holding tanks.
*Not intended for gasoline fuel storage.

marine tank installation instructions
Part NumberRH-B525
Mfr. Part NumberB525
Capacity (Gallons)4.25
Dimensions26"L x 11"W x 7"H
Weight (lbs)13
Wall Thickness5/16" - 3/8"
ManufacturerRonco Plastics
Technical Drawings & Guides
Technical DrawingsFitting DwgFitting Instructions Video
Shipping FromTustin, CA

Ratings & Reviews

Browse Related Products
6" Inspection Lid - White Collar, Clear Lid
6" Inspection Lid - White Collar, Clear Lid  
Part: R-DP60-W-C  


made in the usa