Class A Customs Fresh/Gray Water Tanks (White in color) & fittings are made from DOW NSF International NSF/ANSI Std 61 approved Medium Density Polyethylene (MDPE) Resin

Class A Customs has certification only for Fresh and Gray Water use in theses tanks.

Class A Customs Black Water Tanks (Black in color) are made from RECYCLED Medium Density Polyethylene (MDPE) Resin, these tanks are not food safe, due to being recycled material it can not be verified what possible contaminants could be mixed in.

Using any Class A Customs, LLC water tank for fuel, chemical or other storage voids any and all warranty. Water Tank Warranty Information

Other Uses of Medium Density Polyethylene (MDPE) Resin
Intermediate bulk containers
General purpose custom molding
Agricultural storage tanks
Water tanks
Marine parts
Indoor consumer articles

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