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For filling tank it is recommended to use a fill dish or other gravity process. Tank built-in fittings: two 1. 5" female npt fitting - fitting is sealed and watertight, to use remove membrane with razor knife TWO.
40 gallon fresh or gray water holding tank manufactured by class a Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage. Water tank measurements: 39 1/2” longest length not including fittings x 13” x 18” - tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos.

5” male pipe thread pvC Male Adaptor ONE 5ft. Tank built-in fittings: two 1. 5" female npt fitting - fitting is sealed and watertight, to use remove membrane with razor knife TWO. 5" female npt fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads.
Water tank measurements: 39 1/2” longest length not including fittings x 13” x 18” - tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage. Due to the manufacturing process +/-. 25" on each measurement. For filling tank it is recommended to use a fill dish or other gravity process.

40 gallon fresh or gray water holding tank manufactured by class a Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage.
Class a customs manufactures this item in the USA in Elkhart, pop-up camper, scuffs or marking from the manufacturing process. Non-pressurized tank: tank must be vented allowing air in and out during use. Great extra water storage in rv, hot dog carts, indiana. Water tank measurements: 39 1/2” longest length not including fittings x 13” x 18” - tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos.

Non-pressurized tank: tank must be vented allowing air in and out during use. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage.
Due to the manufacturing process +/-. 25" on each measurement. 33 and 40 gallon each tank built-in fittings: two 1. 5" female npt fitting - fitting is sealed and watertight, to use remove membrane with razor knife TWO. 5" female npt fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads. 40 gallon tank measurements 39.


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".

Non-pressurized tank: tank must be vented allowing air in and out during use. See photos for tank measurements and built-in fittings.

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.

1. Class A Customs
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Class A Customs | T-4000 | One 1 RV Fresh Water 40 Gallon Tank, Grey Water
#adClass A Customs #ad - Tanks are made in a warehouse clean each tank prior to use to remove any debris, pop-up camper, scuffs or marking from the manufacturing process. Great extra water storage in rv, smaller food vendors and portable hand washing sinks. Class a customs manufactures this item in the USA in Elkhart, off-road vehicles, hot dog carts, concession trailers, Indiana.For filling tank it is recommended to use a fill dish or other gravity process. Tank built-in fittings: two 1. 5" female npt fitting - fitting is sealed and watertight, to use remove membrane with razor knife TWO.
More information #ad
5" female npt fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads. Non-pressurized tank: tank must be vented allowing air in and out during use. Due to the manufacturing process +/-. 25" on each measurement. 40 gallon fresh or gray water holding tank manufactured by class a Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage. Water tank measurements: 39 1/2” longest length not including fittings x 13” x 18” - tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos.
Brand | Class A Customs #ad |
Manufacturer | Class A Customs #ad |
Height | 14 Inches |
Length | 42 Inches |
Weight | 49 Pounds |
Width | 18 Inches |
Part Number | 40-gal |
Model | T-4000 |
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 tanks for sewage or fuel. |
More information #ad
2. Class A Customs
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Class A Customs | T-4000-BPK| 40 Gallon Fresh Water Tank & Plumbing Kit RV Concession
#adClass A Customs #ad - Non-pressurized tank: tank must be vented allowing air in and out during use. Basic plumbing kit includes - two 05” hose barb to 05” male pipe thread adaptor four 05” hose clamp one 1. 25” hose barb to 1. 5” male pipe thread adaptor two 1. 5” hose clamps ONE 1.5” male pipe thread pvC Male Adaptor ONE 5ft. Tank built-in fittings: two 1. 5" female npt fitting - fitting is sealed and watertight, to use remove membrane with razor knife TWO. 5" female npt fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads.
More information #ad
40 gallon fresh or gray water holding tank manufactured by class a Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage. Water tank measurements: 39 1/2” longest length not including fittings x 13” x 18” - tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage. Due to the manufacturing process +/-. 25" on each measurement. For filling tank it is recommended to use a fill dish or other gravity process.
Brand | Class A Customs #ad |
Manufacturer | Class A Customs #ad |
Height | 14 Inches |
Length | 42 Inches |
Weight | 49 Pounds |
Width | 18 Inches |
Part Number | 40TK-BPK |
Model | T-4000 |
More information #ad
3. Class A Customs
#ad
Class A Customs | T-4000-SP | One 1 Spouted 40 Gallon RV Fresh and Gray Water Holding Tank RV Concession
#adClass A Customs #ad - For filling tank it is recommended to use a fill dish or other gravity process. Tanks are made in a warehouse clean each tank prior to use to remove any debris, off-road vehicles, concession trailers, smaller food vendors and portable hand washing sinks. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage.40 gallon fresh or gray water holding tank manufactured by class a Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage.
More information #ad
Due to the manufacturing process +/-. 25" on each measurement. Tank built-in fittings: one 1. 25" outer diameter x 2" long boss fitting smooth pipe / spout fitting is open and glue does not stick to pipe, hose with clamp needed THREE. 5" female npt fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads. Class a customs manufactures this item in the USA in Elkhart, pop-up camper, scuffs or marking from the manufacturing process. Non-pressurized tank: tank must be vented allowing air in and out during use. Great extra water storage in rv, hot dog carts, indiana. Water tank measurements: 39 1/2” longest length not including fittings x 13” x 18” - tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos.
Brand | Class A Customs #ad |
Manufacturer | classacustoms.com #ad |
Height | 14 Inches |
Length | 42 Inches |
Weight | 49 Pounds |
Width | 18 Inches |
Part Number | 40TK-SP |
Model | T-4000 |
More information #ad
4. classAcustoms
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Class A Customs | RV Fresh and Gray Water Tank | Combo Pack 33 Gallon & 40 Gallon | RV Water Holding Tanks
#adclassAcustoms #ad - Due to the manufacturing process +/-. 25" on each measurement. Combo pack one 33 gallon & one 40 gallon fresh or gray water holding tank manufactured by Class A Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage.Non-pressurized tank: tank must be vented allowing air in and out during use. Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage.
More information #ad
For filling tank it is recommended to use a fill dish or other gravity process. 33 gallon tank measurements 36” x 12” x 17. 75” -tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos. Due to the manufacturing process +/-. 25" on each measurement. 33 and 40 gallon each tank built-in fittings: two 1. 5" female npt fitting - fitting is sealed and watertight, to use remove membrane with razor knife TWO. 5" female npt fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads. 40 gallon tank measurements 39.
Brand | classAcustoms #ad |
Manufacturer | Class A Customs #ad |
Part Number | TKC-33/40 |
More information #ad
5. RecPro
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RecPro RV Fresh Water Tank 59" x 24" x 7.75" | 24557 | RV Gray Water Tank | 40 Gallon Capacity Tank with Fittings Kit | Made in America
#adRecPro #ad - 40 gallon fresh water Tank for RV and Campers. Made in America. Blank water tank: Fully customizable DIY RV water tank.More information #ad
Brand | RecPro #ad |
Manufacturer | RecPro #ad |
Part Number | RP-VR24597W |
More information #ad
6. classAcustoms
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Class A Customs | RV Fresh and Gray Water Tank | Combo Pack 40 Gallon & 46 Gallon | RV Water Holding Tanks
#adclassAcustoms #ad - 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".
More information #ad
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. Combo pack of rv fresh & gray water Tanks, 40 Gallon & 46 Gallon.Brand | classAcustoms #ad |
Manufacturer | Class A Customs #ad |
Part Number | TKC-40/46 |
More information #ad
7. classAcustoms
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Class A Customs | 40 Gallon RV Concession Fresh Water Tank & 12 Volt Water Pump | T-4000-PUMP
#adclassAcustoms #ad - Do not make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause damage to tank. 40 gallon fresh water holding tank manufactured by Class A Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe.Non-pressurized tank: tank must be vented allowing air in and out during use. See photos for tank measurements and built-in fittings.
More information #ad
Classacustoms 12 volt fresh water pump model # 12v3 - fresh water use only - open flow 11. 6lpm / 3. 0gpm amps 4. 0a max amps 8. 0a shut off pressure 45psi/3. 1 bar on-demand pump only turns on when senses pressure changes in line 12 volt power only! 110/115/220 volt will damage the unit - READ INSTRUCTION BOOKLET BEFORE INSTALLATION.Brand | classAcustoms #ad |
Manufacturer | Class A Customs #ad |
Height | 19 Inches |
Length | 45 Inches |
Width | 15 Inches |
Part Number | T-4000-PUMP |
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 tanks for sewer or fuel. |
More information #ad
8. classAcustoms
#ad
Class A Customs | RV Fresh and Gray Water Tank | Combo Pack 40 Gallon & 55 Gallon | RV Water Holding Tanks
#adclassAcustoms #ad - These 40 gallon and 55 gallon tanks each have two 1 1/2" female NPT fittings fitting will be closed, to use remove inner membrane with razor knife and two 1/2" female NPT fittings fitting is not closed, this fitting is completely open.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.
More information #ad
Combo pack of rv fresh & gray water Tanks, 40 Gallon & 55 Gallon. 40 gallon tank measurements - 39 1/2" x 18" x 13" +/-. 25". 55 gallon tank measurements - 37 1/2" x 19 1/2" x 17 1/2" +/-. 25".Brand | classAcustoms #ad |
Manufacturer | Class A Customs #ad |
Part Number | TKC-40/55 |
More information #ad
9. A.A
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A.A Fresh Water Tank Accessory Hose Connection Kit, RV, Camper, Trailer, Concession
#adA.A #ad - Fits standard tanks with 1. 25" water fill port and 3/8" NPT connections. 1 water fill intake with large hose fitting and cover, 1 Drainage hose spigot, 5 Small hose clamps for the other hoses, 2 Large hose clamps for water fill, and 3 Small hose fittings/barb-to-screw adapters.More information #ad
This accessory hose kit includes all the hoses required for use with a standard fresh water tank. 1 60" long clear hose is used for air and drainage, 1 36" large ribbed hose is for water filling, 1 18" reinforced hose goes to your water pump.Brand | A.A #ad |
Manufacturer | Automotive Authority LLC® #ad |
Part Number | FW01HK |
More information #ad