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Class A Customs | RV Fresh and Gray Water Tank | Combo Pack (40 Gallon & 46 Gallon) | RV Water Holding Tanks

  • Based on 67 reviews
Condition: New
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$265.95 Why this price?
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Availability: In Stock.
Fulfilled by classAcustoms

Arrives Jun 18 – Jun 20
Order within 12 hours and 20 minutes
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Features

  • Combo Pack of RV Fresh & Gray Water Tanks, 40 Gallon & 46 Gallon
  • NSF Certified MATERIALS used for manufacturing process -- ALL PARTS of tank made with NSF International NSF/ANSI Std 61 approved Medium Density Polyethylene (MDPE) Resin with UV-8 stabilization -- The tank and fittings are both made out of this material.
  • TANKS BUILT-IN FITTINGS: (TWO) 1.5" Balloon Style Threaded Female NPT Standard - fitting will be closed, to use remove inner membrane with razor knife (TWO) .5" Threaded Female NPT Standard - open fitting, unsealed
  • 40 Gallon Tank Measurements - 39 1/2" x 18" x 13" (+/- .25")
  • 46 Gallon Tank Measurements - 42" x 18" x 14" (+/- .25")

Description

NSF Certified MATERIALS used for manufacturing process -- ALL PARTS of tank made with NSF International NSF/ANSI Std 61 approved Medium Density Polyethylene (MDPE) Resin with UV-8 stabilization -- The tank and fittings are both made out of this material. FRESH/DRINKING WATER SAFE - Other tank brands without NSF logo will not pass a health inspection, tanks made without the correct materials may be hazardous to your health. BPA FREE - Class A Customs does not carry this chemical nor uses it in the manufacturing process. FRESH or GRAY TANK use. SEAMLESS one piece construction, no seams to burst. RESISTANT to Stain, Corrosion and Rust Resistant. COLOR Creamy White you can see waterline through tank. OEM PART - No retail box - no install instruction. Have a certified technician install all parts to prevent product damage and personal injury. PREPARATION - Sanitize each tank prior to use to remove any debris from the manufacturing process. Tanks are made in a warehouse, wipe with a damp cloth to remove surface dust or scuffs. TANK MUST BE VENTED allowing air in and out when in use. DO NOT PRESSURIZE TANK DO NOT HOOK GARDEN HOSE DIRECTLY TO TANK DAMAGE WILL OCCUR DO NOT over-tighten fittings damage will occur. MOUNTING & BRACING - Place tank on level surface and brace to prevent tank from moving during transit. DO NOT hang tank by straps. DO NOT place weight on tank. WARRANTY - Cutting or modifying the tank in any way voids any/all warranty Using tank for any purpose other than fresh/gray water storage voids any/all warranty FOOD VENDORS You must verify requirements with health department where inspection will be made. BEFORE PURCHASING - Verify Requirements on Fresh Water Tank, Gray Water Tank, fittings, drainage, and mounting placement.

Brand: classAcustoms


Color: Creamy White


Material: Polyethylene (PE), Resin


Product Dimensions: 39.5"L x 18"W x 42"H


Capacity: 40 Gallons


Brand Name: classAcustoms


Manufacturer: Class A Customs


Manufacturer Part Number: TKC-40/46


Unit Count: 2.0 Count


Item Dimensions L x W x H: 39.5"L x 18"W x 42"H


Capacity: 40 Gallons


Color: Creamy White


Shape: Rectangular


Specification Met: National Sanitation Foundation 61


Material Type: Polyethylene (PE), Resin


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 18 – Jun 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Exactly what is pictured
Exactly what I needed to upgrade my food truck. The fittings are the same as my smaller tanks so everything swapped over easily.
Reviewed in the United States on July 2, 2025 by Sabrina

  • great fit
I love these, put them in my skoolie. They fit like a glove under my bus.
Reviewed in the United States on December 19, 2023 by Daniel

  • There might be some defect
I bought 2 sets. One set came perfect while the other set has dent on both tanks. Not effecting their function though. And for whoever complain about the dirty/black marks on the outside, you will make it dirtier while handling it lol.
Reviewed in the United States on October 15, 2021 by Wenbo Dong

  • Very brittle plastic. Doesn't hold up to time. Very brittle plastic. Doesn't hold up to time.
Very bad quality can't handle any amount of pressure with. I didn't even get to use the item and will now have to purchase again do to damage. I have already had to repair a crack from something dropping on the top of one tank. Now I had a can of paint sit on one and applied light pressure to press the lid on and the whole top of the tank caved in. Very disappointed for the money I spent on these. ... show more
Reviewed in the United States on March 14, 2026 Reviewed in the United States on March 14, 2026 by dylan

  • Great for water storage.
It was great for our bus/rv conversion.
Reviewed in the United States on June 17, 2020 by Bryan

  • Good
Good
Reviewed in the United States on January 23, 2021 by Luis

  • They want you ti pay shipping cost to return They want you ti pay shipping cost to return
Good quality but I had to order bigger tanks and wanted to return the old ones but they want you to pay for shipping and it was gonna cost over $200 dollars
Reviewed in the United States on May 10, 2026 Reviewed in the United States on May 10, 2026 by Angel Sandoval

  • Don’t buy
They had holes in both of them
Reviewed in the United States on July 19, 2024 by Bad quality. Can’t even use them was a waste of money

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