
Class A Customs located in Elkhart, Indiana manufactures fresh and gray water use tanks along with black waste water holding tanks.
great for rvs, food vendors, tiny houses, overlanding and extra water storage
BPA FREE
Class A Customs does not carry this chemical nor uses it in the manufacturing process
Material Used To Manufacture
Fresh/Gray Water Tanks & fittings made from DOW NSF International NSF/ANSI Std 61 approved Medium Density Polyethylene (MDPE) Resin
NSF Certified Materials – No Logo in Tanks (see why)
UV-8 Stabilization
glues do not stick to this material and easily cleaned.
Complies with:
U.S. FDA 21 CFR 177.1520 (c)3.1a
Canadian HPFB No Objection
Underwriters Laboratories Inc.
EU, 10/2011
NSF International NSF/ANSI Std 61 (sec 4 & 5)


all tanks Class A Customs manufactures must be vented (allow air in/out during use), Plumbing Example
Tanks creamy white in color can be used for Fresh or Gray water use, great for rvs, food vendors, tiny houses, over-landing and extra water storage
Seamless
One-piece seamless construction, no seams to burst Average tank thickness: .219 or 7/32″ thick (just under 1/4″)
Rotatable
tank can be placed on any side but must be braced
Resistant
Stain, Corrosion and Rust Resistant
Color
Creamy White in color so you can see waterline through tank
Manufacturer Warranty
Manufacturer warranty covers manufacturer defect on manufacturer installed fittings and tank. Using this tank for any purpose other than fresh or gray water storage will void any/all warranty.
Do Not use Fresh / Gray tanks for sewage or fuel. Do not call to ask can it be used for fuel or sewer, we will only refer you to the warranty information.
Have a certified technician install all parts to prevent product damage and personal injury. Be sure to Sanitize Tank before installing.

Shipping Information and Order Processing

Food Vendor Information – Read Before Purchasing

How to Sanitize Fresh Water Holding Tank

Plumbing and Venting Water Tanks


Bracing and Supporting Water Tanks

Custom Water Tanks – Custom Fittings
If you are looking for a replacement tank for a unit:
Check with the manufacturer to see if they have information.
Look at the tank to see a part number, do an online search with the part # and make/model of unit.
You may not be able to find the same tank, especially in older units.
You may not be able to purchase from the tank manufacturer unless you are a builder/dealer.
Because we sell the tanks that we manufacturer we are not aware of information on other tanks, suppliers, manufacturers or where to specific water tanks.
We do not have a list of vehicles, uses or projects people have done with our tanks, please compare the specs of the tank with your application and determine if tank will fit your needs.
RV Black & Gray Waste Water Tank Helps

Class A Customs Black Waste Tanks
Used for Human Waste OR Gray Water – DO NOT use for fresh or drinking water – 3” ABS Female Pipe – outlet can not be moved

Class A Customs Gray Waste Tanks
Used for Gray Water ONLY – DO NOT use for fresh or drinking water OR Human Waste – 1.5″ ABS Female Pipe – outlet can not be moved Due to the smaller outlet this tank is for dirty water from shower, handwashing, dish-washing
all tanks we carry must be vented (allow air in/out during use), Plumbing Example
great for rvs, food vendors, tiny houses, overlanding and extra waste water storage
Seamless
One-piece seamless construction, no seams to burst Average tank thickness: .219 or 7/32″ thick (just under 1/4″)
Resistant
Stain, Corrosion and Rust Resistant
Color
Black in color so tank is easily identified as a waste tank
Material Used To Manufacture
Recycled Medium Density Polyethylene (MDPE) Resin – glues do not stick to this material and easily cleaned. – Because product is recycled and intended for waste use it is not tested for safety of drinking or gardening water supply.
Manufacturer Warranty
Manufacturer warranty covers manufacturer defect on manufacturer installed fittings and tank. Using this tank for any purpose other than waste or gray water storage will void any/all warranty.
Do Not use Waste Tanks for fresh / drinking water or fuel. Do not call to ask can it be used for fuel or fresh / drinking water, we will only refer you to the warranty information.
Have a certified technician install all parts to prevent product damage and personal injury.
Installed Outlet
Black Waste Tanks – 3” ABS Female Pipe – outlet can not be moved
Gray Waste Tanks – 1.5″ ABS Female Pipe – outlet can not be moved
Do Not over-tighten fittings damage will occur.
Dump valves do not hook directly to the ABS fittings, the ABS Outlets are female fittings and the dump valves are also female fittings, you will need a pipe to fit inside of the outlet and hub in order to make the connection.
From the outlet run PVC or ABS piping to the outside of the trailer, a dump valve is added to the piping. We do not sell glues, examples Oatey 4-fl oz Green PVC/Abs Transition Cement
Inlet & Vent Installation
Black Water Tanks only come with the outlet the end user will determine where the inlet and vent will need to be placed and install.
Grommet or Uniseal will secure inlet/vent pipe with no adhesives needed. Use correct size hole saw bit in order to drill a hole in the tank and place Grommet or Uniseal in hole, piping is then placed in fitting with no glues or adhesives necessary.
Example Video