Custom fitting placement not available at this time.Mounting straps are not offered on this tank.Not intended for gasoline fuel storage.
Ronco 21 Gallon Marine Water Tank, part# B490-MWT is a natural white marine water tank.
This marine water tank is constructed with rotationally molded polyethylene resin. It's seamless construction makes it durable and resistant to cracks, chips, and ruptures. The poly tank was made with FDA approved resin that complies with FDA standards 21 CFR 177.1520 (1) 3.1 and 3.2 for the storage of potable water.
The Ronco 21 gallon marine water tank has a wall thickness of 5/16" and can be ordered blank with a diy fitting kit.
This plastic marine water tank is available in sizes ranging from 1 to 280 gallons.
The National Tank Outlet is ready to help fulfill your marine water tank needs. Contact our marine water tank experts with your questions.
MARINE TANKS should always be stored out of direct sunlight and protected from freezing. Prior to installation, tanks should be at room temperature for a minimum of six (6) hours. The tank must be installed on a flat or contour matched surface, be clean and totally supported in all planes with 1/2" - 3/4" marine plywood or equivalent.
Install tubing and fittings so that there are no points of stress on the tank. Use elbows to prevent partial bending or collapsing of the tubing when a change in direction is required.
Plastic tank connections are designed to seal dry. Compounds such as sealants, pipe dopes, greases, petroleum jellies, glues or adhesives are not to be used. Normally, hand tightening will provide adequate seal. On occasion, a slight tightening with a wrench may be required. To avoid damage to seal fittings, do not apply excessive force. Do not exceed 1/4 turn after hand tightening.
Do not install metal fittings in the plastic tank as the materials are not compatible.
Should you desire to test the portable water tank or water system for leaks, fill with water and check visually.
Size ComparisonAt Scale
Store ID X2178581 Manufacturer Info Product Part # B490 Manufacturer Ronco Size Info Capacity (Gallons) 21 Dimensions 30" Length x 18" Width x 11 7/8" Height Wall Thickness 5/16" - 3/8" Weight (lbs) 27 Resin Features Color Natural White Material Polyethylene FDA Approved Resin Yes (Food Grade, Potable) UV Inhibitors No Max Temp Allowed 130° F / 54° C Physical Features Product Type Marine Water Tank Tank Shape Rectangular Tank Usability Portable Environment Above Ground Pressurized Use No ANSI / NSF 61 Approved Resin Yes Shipping Info Shipping Locations California Shipping Zip Codes 92780 Ship Freight Class 125