49 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-461)

Description

The Custom Roto-Mold 49 Gallon Marine Water Tank (Part# MW-461) is designed to meet the demands of mobile fresh water storage in marine vessels, RVs, and specialty vehicles. Its low-profile rectangular form makes it ideal for installation in shallow compartments, hulls, or under seating areas where vertical clearance is limited.

Manufactured using rotational molding technology, this tank features a seamless, one-piece construction that delivers exceptional structural integrity and durability. Unlike tanks with joints or seams, the MW-461 is built to withstand years of use without risk of cracking, leaking, or deforming.

Constructed from FDA-approved polyethylene resin, this tank is fully compliant with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring it is safe for storing potable drinking water. It resists contamination and stands up to harsh environments, including exposure to saltwater, UV rays, and road vibration.

Key Features

• 49-Gallon Capacity. Ideal for medium-size marine and RV freshwater systems.
• Seamless Rotational Molded Construction. One-piece design enhances strength and longevity.
• Potable Water Safe. Manufactured from FDA-compliant polyethylene resin.
• Low-Profile Build. Stands only 8" tall — perfect for under-bench or flat-mount spaces.
• Resistant to Harsh Environments. Withstands saltwater, UV exposure, and vibration.
• Blank Tank Design. Ships without fittings for flexible installation options.
• Lightweight and Easy to Handle. Weighs 56 lbs, ideal for tight installation spaces.
• Natural Translucent Finish. Allows for easy water level monitoring.
• Made in the USA. Proudly manufactured in Oregon under rigorous quality standards.
  

Specifications

• Product Type: Marine fresh water tank
• Part Number: MW-461
• Capacity: 49 gallons
• Dimensions: 54" L x 28" W x 8" H
• Weight: 56 lbs
• Material: FDA-compliant polyethylene
• Wall Thickness: Approx. 0.25"
• Color: Natural (translucent white)
• Fittings: Blank (no pre-installed fittings)
• Manufacturing Location: Oregon, USA
• Application: Potable water (Marine, RV, utility)
  

Shipping & Warranty

Shipping Information

• Manufacture Lead Time: 3-5 Weeks 
  
• Ships From (State): ID
  

Products are subject to freight or parcel shipping costs. Shipping charges are calculated at checkout based on delivery location, product size, weight, and carrier requirements.

Each tank is manufactured and assembled in the USA using high-quality materials and strict quality control standards—built for long-term, dependable use in demanding applications.

Warranty Information

Custom Roto-Molding tanks are covered by a 5-year manufacturer warranty from the date of original purchase against defects in material and workmanship. Coverage applies to tanks that are correctly installed and have not been subjected to abuse or misuse, and is for the benefit of the original end user. The warranty does not cover misuse, fire, accident, negligence, transit damage, unauthorized modifications, excessive external pressure, abnormal use, product loss through leakage, or related injury/property damage. Manufacturer liability is limited to repair or, at its option, replacement of a qualifying defective product, subject to written notice within the warranty period and return of the item to the point of manufacture with transportation prepaid. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.