Boat Tanks

Marine grade boat water and holding tanks are available for sale in 100's of sizes.

Boat Tanks are available in gallon capacities that range from 3 - 375 gallons. Our tanks are extremely affordable and come in a variety of sizes to fit virtually any dimensional requirement. Can't find the perfect tank for your vessel? We can custom build it for you and we feature heavy discounts for bulk orders of large quantities.

Marine Water & Waste Holding Tank Manufacturers Include:

Marine grande tanks are replacement boat tanks compatible with the vast majority of the most popular boat manufacturers including but not limited to:

  • Sea Ray
  • Bayliner
  • Mastercraft
  • Baja
  • Catalina Yachts
  • Boston Whaler
  • Ranger
  • Malibu
  • Chaparral
  • Wellcraft
  • Grady-White

All of the tanks we sell are manufactured from a high quality polyethylene resin in one seamless piece. While these tanks meet FDA regulations for the safe storage of potable water their robust construction means they can be utilized for greywater and blackwater applications.

Custom fittings can be installed per the customer's request and technical drawings are available for easy download directly from the individual tank's product page. Please do not hesitate to call us at (800)826-5727 if you require any assistance with specifying the exact location of your desired fittings.

Suitable applications for our tanks include:

  • Fresh Water Tanks
  • Waste Holding Tanks
  • Grey Water Tanks
  • Black Water Tanks
  • Septic / Waste Holding Tanks

It is not uncommon to see one of our tanks in use as a replacement tank on:

  • Speed Boats
  • Sailboats
  • Yachts
  • Barges
  • Cabin Cruisers
  • Cuddy Bain Cruisers
  • Catamarans
  • Houseboats

Tanks feature seamless construction with wall densities that range from 5/16" - 3/8" thick. The tanks are manufactured from a semi translucent plastic resin to make it easy to view the current content level of the tank to avoid overfilling of the tank.

Popular additions and accessories include:

Holding tanks are a vital component of a boat's plumbing system and should not be overlooked when undergoing repairs. It is critical that you accurately measure the storage compartment that the tank will actually be stored in as the vast majority of our tanks are normally bolted into their location. Securing of your tank's to the boat's deck help avoid messy accidents and unnecessary spillage of tank contents.

Another key benefit of using a plastic water holding tank for your boat is the material is less likely to retain odor after the contents have been emptied.

All of our marine water and waste holding tanks feature female NPT (National Pipe Threads) for easy adaptation and integration with existing plumbing systems.

Please do not hesitate to contact our resident product specialists at (800)826-5727 today if you require any assistance with completing your order.