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After deep searching of an insanely huge number of articles and reviews by our brilliant AI and Machine Learning algorithms; and detailed refining, examination and screening by our professional high-tech gurus, the golden shortlist for the Best RV Freshwater Tanks & Inlets (2021) is ultimately assembled.

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In order to obtain the Best RV Freshwater Tanks & Inlets (2021), our powerful platforms and gurus have taken many factors into account such as product fitness for use, features that meet consumers needs and give customer satisfaction, freedom from deficiencies or defects, conformity of standards, worthiness-for-money, credibility, level of design standards, quality conformance to needs and good practises, protection and safety, actual customer satisfaction and lots of others. It is worth to note that each user has different needs so please use the benchmarking below as a guide and not as a gospel. Nonetheless, in the shortlist below you can absolutely find the overall best ones regardless of your requirements.

Our dynamic platforms and skillful high-tech gurus work hard to provide you with the best product options. We firmly believe that that our review rankings can help you simplify your purchase decision and choose among the very Best RV Freshwater Tanks & Inlets (2021).

Best RV Freshwater Tanks & Inlets

Best Choice No. 1
Class A Customs | T-2300 | One (1) RV Fresh Water 23 Gallon Tank, Grey Water
  • 23 Gallon Capacity Fresh Drinking Water Safe Holding Tank Manufactured by Class A Customs – Fresh & Drinking Water Safe
  • WATER TANK MEASUREMENTS: 39 ½” Longest Length (not including fittings) x 8 3/4″ x 14 3/4″ (rotate tank to change height or width) Average thickness 7/32” +/- (+/- .25″ on each measurement)
  • tank has two 1/2″ female NPT fittings (fitting will be closed, to use remove inner membrane with razor knife) and two 1 1/2″ female NPT fittings (fitting is not closed, this fitting is completely open)
  • NON-PRESSURIZED TANK: you will need to vent this tank to use it, letting air in and out during use. Do NOT hook garden hose to tank use a fill dish.
  • Great extra water storage in RV, pop-up camper, off road vehicles, concession trailers, hot dog carts, smaller food vendors and portable hand washing sinks. Class A Customs Manufactures this item here in the US in Elkhart, Indiana
Best Choice No. 2
Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank | UM-3000
  • 30 Gallon Fresh or Gray Water Holding Tank Manufactured by Class A Customs – BPA FREE – NSF Approved Materials – Fresh & Drinking Water Safe – Can be used for Gray Water Storage
  • WATER TANK MEASUREMENTS: 48” Longest Length (not including fittings) x 8.5” height x 20.5” width Average thickness 7/32” +/- (+/- .25″ on each measurement) Designed to fit between the cross members of trailers
  • TANK 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
  • NON-PRESSURIZED TANK: tank must be vented allowing air in and out during use. DO NOT hook garden hose directly to tank doing so will cause tank to explode resulting in damage.
  • Great extra water storage in RV, pop-up camper, off-road vehicles, concession trailers, hot dog carts, smaller food vendors and portable hand washing sinks. Class A Customs Manufactures this item here in the US in Elkhart, Indiana.
Best Choice No. 3
Class A Customs | 42 Gallon RV Concession Fresh and Gray Water Holding Tank | T-4200
  • 42 Gallon Fresh or Gray Water Holding Tank Manufactured by Class A Customs – BPA FREE – NSF Approved Materials – Fresh & Drinking Water Safe – Can be used for Gray Water Storage
  • WATER TANK MEASUREMENTS: 27.5” Longest Length (not including fittings) x 15.25” x 22.5” (rotate tank to change height or width) Average thickness 7/32” +/- (+/- .25″ on each measurement)
  • TANK BUILT-IN FITTINGS: (THREE) 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
  • NON-PRESSURIZED TANK: tank must be vented allowing air in and out during use. DO NOT hook garden hose directly to tank doing so will cause tank to explode resulting in damage.
  • Great extra water storage in RV, pop-up camper, off-road vehicles, concession trailers, hot dog carts, smaller food vendors and portable hand washing sinks. Class A Customs Manufactures this item here in the US in Elkhart, Indiana.
Best Choice No. 4
Class A Customs | T-4000 | One (1) RV Fresh Water 40 Gallon Tank, Grey Water
  • 40 Gallon Capacity Fresh Drinking Water Safe Holding Tank Manufactured by Class A Customs – Fresh & Drinking Water Safe
  • WATER TANK MEASUREMENTS: 39 1/2” Longest Length (not including fittings) x 13” x 18” (rotate tank to change height or width) Average thickness 7/32” +/- (+/- .25″ on each measurement)
  • Tank has two 1/2″ female NPT fittings (fitting will be closed, to use remove inner membrane with razor knife) and two 1 1/2″ female NPT fittings (fitting is not closed, this fitting is completely open)
  • NON-PRESSURIZED TANK: you will need to vent this tank to use it, letting air in and out during use. Do NOT hook garden hose to tank use a fill dish.
  • Great extra water storage in RV, pop-up camper, off road vehicles, concession trailers, hot dog carts, smaller food vendors and portable hand washing sinks. Class A Customs Manufactures this item here in the US in Elkhart, Indiana.
Best Choice No. 5
Class A Customs | T-2100 | One (1) RV Fresh Water 21 Gallon Tank, Grey Water
  • 21 Gallon Capacity Fresh Drinking Water Safe Holding Tank Manufactured by Class A Customs – Fresh & Drinking Water Safe
  • WATER TANK MEASUREMENTS: 34” Longest Length (not including fittings) x 9” x 16” (rotate tank to change height or width) Average thickness 7/32” +/- (+/- .25″ on each measurement)
  • Tank has 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)
  • NON-PRESSURIZED TANK: you will need to vent this tank to use it, letting air in and out during use. Do NOT hook garden hose to tank use a fill dish.
  • Great extra water storage in RV, pop-up camper, off road vehicles, concession trailers, hot dog carts, smaller food vendors and portable hand washing sinks. Class A Customs Manufactures this item here in the US in Elkhart, Indiana.
Best Choice No. 6
RecPro RV Fresh Water Tank 57″ x 34″ x 5″ | 34575 | RV Gray Water Tank | 39 Gallon Capacity (Tank with Fittings Kit)
  • 39 Gallon Fresh Water Tank for RV and Campers
  • Blank water tank: Fully customizable DIY RV water tank
  • Made in the USA
Best Choice No. 7
RecPro RV 39 Gallon Fresh Water Holding Tank for Campers, Trailers and RV Tank with Sensors
  • The uniform thickness of the tanks makes them much more durable than the traditional rotational molded and thermoformed varieties
  • Blow-molded HDPE tanks are an integral component to all recreational vehicles
  • Tanks are built to standards specified by IAPMO (International Association of Plumbing and Mechanical Officials) and the Canadian Standards Association
  • 27.7 Width x 53.5 Length x 7.5 Height Holding Tank 39 – Gallon, Blow-molded with 1 Inch Coupling
Best Choice No. 8
Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support
  • 100 Gallon Capacity Fresh or Gray Water Holding Tank Manufactured by Class A Customs – BPA FREE – NSF Approved Materials – Fresh & Drinking Water Safe – Can be used for Gray Water Storage
  • WATER TANK MEASUREMENTS: 50” Longest Length (not including fittings) x 18” x 26” – 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)
  • TANK BUILT-IN FITTINGS: (SIX) 1.5″ Female NPT Fitting – fitting is sealed and water-tight, 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 threaded fittings, metal threads may damage tank fittings
  • 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. For filling tank it is recommended to use a fill dish or other gravity process.
  • Great extra water storage in RV, pop-up camper, off-road vehicles, concession trailers, hot dog carts, smaller food vendors and portable hand washing sinks. Class A Customs Manufactures this item in the USA in Elkhart, Indiana. 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.
SaleBest Choice No. 9
Automotive Authority LLC 1-3/8″ Fill Hose for RV Concession Fresh Water Tank – Marine, Boats, Campers, Trailer, RVs, Concession (5 Feet)
  • 1-3/8″ ID Fill Hose with Flats (Choose Your Own Length) – The last picture shows a 25 ft roll and does not represent shorter lengths
  • This 1-3/8″ hose is to be used with hose clamps to connect RV gravity water fill with the RV water tanks (no clamps included).
  • Made from ethylene copolymer (great flexibility with no kinking)
  • PLEASE NOTE: All length measurements are rough and will be within +/- 3″
  • Heavy duty construction, IAPMO approved
Best Choice No. 10
RecPro RV 45 Gallon Fresh Water Holding Tank for Campers, Trailers and RV Tank with Sensors
  • The uniform thickness of the tanks makes them much more durable than the traditional rotational molded and thermoformed varieties
  • Blow-molded HDPE tanks are an integral component to all recreational vehicles
  • Tanks are built to standards specified by IAPMO (International Association of Plumbing and Mechanical Officials) and the Canadian Standards Association
  • 27.7 Width x 53.5 Length x 7.5 Height Holding Tank 45 – Gallon, Blow-molded with 3 Inch Coupling

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