Best RV Freshwater Tanks & Inlets of 2025

David Davis Avatar
David Davis
Last Updated: Jan 10, 2025

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RV freshwater tanks and inlets are essential components for any RV owner who wants to keep their water supply clean and safe. These tanks are designed to hold freshwater, which can be used for drinking, cooking, and cleaning. The inlets are the points where the water enters the RV, and they are typically located on the side of the vehicle. RV freshwater tanks and inlets come in a variety of sizes and styles to fit the needs of different RV models and owners. They are made from durable materials, such as plastic or metal, and are designed to withstand the rigors of travel and use. With proper maintenance and care, RV freshwater tanks and inlets can provide years of reliable service for RV enthusiasts.

At a Glance: Our Top Picks

A.A 42 Gallon RV Water Tank Cover #TOP 1
A.A 42 Gallon RV Water Tank
ftb score rating icon 9.9
RecPro 100 Gallon RV Fresh Water Tank Cover #TOP 2
RecPro 100 Gallon RV Fresh Water Tank
ftb score rating icon 9.8
Ameri-Kart WT-1476 40 Gallon Fresh Water Tank Cover #TOP 3
Ameri-Kart WT-1476 40 Gallon Fresh Water Tank
ftb score rating icon 9.6

Top 10 RV Freshwater Tanks & Inlets

#TOP 1

A.A 42 Gallon RV Water Tank

A.A
FWT-RV
42 Gallon
A.A 42 Gallon RV Water Tank Cover
A.A 42 Gallon RV Fresh/Gray Water Tank 39" x 18" x 14" - BPA Free (42 Gallon)

The A.A RV Water Tank is a robust 42-gallon tank that measures 39" x 18" x 14". It features a 1.25" water fill inlet and three 3/8" NPT connections, ensuring you have the right fittings for easy installation. This non-pressurized tank requires ventilation, which helps maintain optimal performance. Made from high-quality polyethylene, its one-piece seamless design prevents leaks and ensures durability. You will appreciate its stain, corrosion, and rust resistance, making it an excellent choice for RVs, horse trailers, or marine applications.

What We Like
Durable polyethylene construction
Seamless design prevents leaks
Stain and corrosion resistant
Easy installation with multiple fittings
#TOP 2

RecPro 100 Gallon RV Fresh Water Tank

100 Gallon
Natural White
RecPro 100 Gallon RV Fresh Water Tank Cover
RecPro RV Fresh Water Tank 100 Gallon for Drinking and Potable Water | Fresh or Gray Water Plastic Storage | Made in America

The RecPro RV Water Tank is an essential addition for your RV adventures, boasting a generous 100-gallon capacity to keep you hydrated during long trips. This tank is specifically designed for RVs and trailers, ensuring durability as it stands up to travel demands. Proudly made in the USA, you can trust its quality for miles on the road. With this tank, you'll have a continuous supply of clean drinking water, which is not only convenient but also vital for emergencies.

What We Like
Large 100-gallon capacity
Durable polyethylene construction
Made in the USA
Sanitary and leak-proof
#TOP 3

Ameri-Kart WT-1476 40 Gallon Fresh Water Tank

Ameri-Kart
W1476
White
40 Gallon
Ameri-Kart WT-1476 40 Gallon Fresh Water Tank Cover
Ameri-Kart WT-1476 40 Gallon RV Fresh Water Tank for Drinking and Potable Water for Campers, Trailers, and RVs, 63-Inch x 32-Inch x 6-Inch

The Ameri-Kart Fresh Water Tank is a 40-gallon solution designed for clean drinking water, perfect for RVs, campers, and trailers. Its easy installation process allows you to customize fitting locations to suit your needs. Made from durable, weather-resistant materials, this tank is built to last and prevents leaks, ensuring you have reliable water storage on your journeys. Manufactured in the USA, it meets strict industry standards, giving you peace of mind while you enjoy the great outdoors.

What We Like
Durable and weather-resistant
Easy installation options
40-gallon capacity
Leak prevention design
#TOP 4

Class A Customs T-10000 RV Water Tank

T-10000
Creamy White
Class A Customs T-10000 RV Water Tank Cover
Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support

The Class A RV Water Tank is a versatile 100-gallon solution for your fresh or gray water storage needs. Made from NSF-approved materials, it is safe for both fresh and drinking water, giving you peace of mind during your travels. With measurements that allow for flexible placement, you can easily adjust the tank's orientation to fit your space. The built-in fittings are designed for secure connections, ensuring that your water storage remains watertight. Additionally, the tank must be vented, preventing any risk of pressure buildup, which enhances safety during use.

What We Like
Large capacity for storage
NSF-approved materials
Flexible placement options
Secure watertight fittings
Safe non-pressurized design
#TOP 5

Class A Customs RV Fresh Water Tank with Plumbing Kit & Pump

T-4200-BPK-PUMP
Creamy White
Class A Customs RV Fresh Water Tank with Plumbing Kit & Pump Cover
Class A Customs | 42 Gallon RV Concession Fresh Water Tank with Plumbing Kit & 12 Volt Water Pump | T-4200-BPK-PUMP

The Class A Customs 42-gallon RV Fresh Water Tank is manufactured from NSF-approved materials that are safe for drinking water. The tank features two 1.5" female NPT fittings and two 0.5" female NPT fittings, which are watertight and sealed. The non-pressurized tank should be vented to allow air in and out during use. The plumbing kit includes all the necessary hoses and adapters, and the ClassAcustoms 12V3 Fresh Water Pump is on-demand and has an open flow of 11.6LPM/3.0GPM. Installation is easy with the included instruction booklet.

What We Like
Safe for drinking water
Includes necessary hoses and adapters
On-demand pump turns on when pressure changes in line
#TOP 6

Class A Customs T-2500 25 Gallon Tank

T-2500
White
Class A Customs T-2500 25 Gallon Tank Cover
Class A Customs | T-2500 | One (1) RV Fresh Water 25 Gallon Tank, Grey Water

The Class A 25 Gallon Tank is designed for versatile use, allowing you to store either fresh or gray water safely. Made from NSF-approved materials, it ensures that your water is safe for drinking. The tank's dimensions make it adaptable; you can position it in various ways to fit your space requirements. Additionally, it features built-in fittings that are watertight, making installation straightforward while preventing leaks. This tank is perfect for RVs, campers, and food vendors, providing extra water storage and convenience for your adventures.

What We Like
Safe for drinking water
Versatile positioning options
Watertight built-in fittings
Ideal for RV and food vendors
#TOP 7

RecPro 21 Gallon RV Water Tank

21 Gallon
RecPro 21 Gallon RV Water Tank Cover
RecPro RV Fresh Water Tank 21 Gallon for Drinking and Potable Water | 39.25" x 8" x 16" | Fresh or Gray Water Plastic Storage | Made in America

The RecPro RV Water Tank is designed specifically for RV and trailer camping, ensuring you have a reliable source of fresh drinking water during your journeys. Made from sturdy polyethylene, this tank is built to withstand the challenges of travel. Proudly manufactured in the USA, you can trust in its high-quality construction. With a generous capacity of 21 gallons, it keeps you and your family well-hydrated and can serve as a backup water supply in emergencies. Plus, its leak-proof design guarantees that your water remains clean and safe for drinking.

What We Like
Durable polyethylene construction
21-gallon capacity
Leak-proof design
Made in the USA
#TOP 8

Class A Customs T-4000 40 Gallon Tank

T-4000
White
Class A Customs T-4000 40 Gallon Tank Cover
Class A Customs | T-4000 | One (1) RV Fresh Water 40 Gallon Tank, Grey Water

The Class A T-4000 Tank is a versatile 40-gallon water storage solution designed for RVs and other mobile units. Made from NSF-approved materials, this tank ensures that both fresh and drinking water are safe for your use. Its dimensions allow you to position it in various orientations, giving you flexibility in installation. With built-in watertight fittings, you can connect it securely without worrying about leaks. Just remember, it’s a non-pressurized tank, so proper venting is essential to avoid damage. This tank is perfect for enhancing your water storage needs while on the road.

What We Like
NSF-approved materials
Versatile installation options
Watertight built-in fittings
Non-pressurized design
#TOP 9

Class A Customs RV 30 Gallon Water Tank

T-3000-1
white
Class A Customs RV 30 Gallon Water Tank Cover
Class A Customs | One (1) RV Fresh and Gray Water 30 Gallon Tank | T-3000

This 30-gallon tank is made from NSF-approved materials, which are safe for drinking water. It can be used for both fresh and gray water storage. The tank has built-in fittings, including 1.5" and 0.5" female NPT fittings, and each fitting is sealed and watertight. The tank is non-pressurized and must be vented during use, and it should not be connected directly to a garden hose. This tank is perfect for extra water storage in RVs, concession trailers, and portable hand washing sinks.

What We Like
Suitable for both fresh and gray water storage
Built-in fittings are sealed and watertight
NSF-approved materials make the tank safe for drinking water
#TOP 10

75L Thickened Fresh Water Tank by koxuyim

Tank -75L
75L Thickened Fresh Water Tank by koxuyim Cover
Thickened Fresh Water Tank -Water Tank Kit & Plumbing Solution for RV Concessions - Made from high Impact Plastic Material -Large Capacity and Non-pressurized White 75L

The koxuyim Fresh Water Tank is an ideal solution for storing drinking water in your RV or concession. Made from food-grade polyethylene, it ensures safe and fresh water storage. With a robust design crafted from high-impact plastic, this tank is built to endure outdoor conditions. Its large 75L capacity allows you to store plenty of water, making it perfect for long trips. The universal fit design, complete with essential components, ensures easy installation in various vehicles, giving you a hassle-free water supply wherever you go.

What We Like
Durable high-impact plastic
Large 75L capacity
Universal fit for various vehicles
Safe for drinking water
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How long can you keep water in a freshwater RV tank?

It is not recommended to keep water in your freshwater RV tank for more than two weeks without using it. Stagnant water can develop a plastic smell and taste, and may also promote the growth of mold, algae, and bacteria.

2. Should you drain the RV fresh water tank?

Yes, it is important to regularly drain your RV's fresh water tank. Whether you are winterizing your vehicle, going on a long trip, or returning from an adventure, draining the tank helps keep your water supply fresh and safe to use.

3. How long does 30 gallons of water last in an RV?

On average, a 30-gallon water tank in an RV can last about 6 days. However, the exact duration depends on factors such as water usage habits and the number of people using the water. It is important to monitor your water consumption to ensure you have enough supply for your needs.

4. How often should you sanitize your freshwater tank on an RV?

Most RVers sanitize their fresh water tank once a year, usually in the spring when dewinterizing their RV. Some manufacturers recommend sanitizing the tank after each use, but this is open to interpretation. Regular sanitation helps maintain the cleanliness and safety of your water system.

5. Can you drive with the RV fresh water tank full?

Yes, it is possible to travel with a full RV fresh water tank. However, keep in mind that carrying a full tank adds weight to your RV, which may impact fuel efficiency and handling. Consider your travel plans and the availability of water sources to decide whether to travel with a full tank.

6. Can you repair an RV fresh water tank?

Yes, it is possible to repair an RV plastic freshwater tank. Special epoxy resin and fiberglass patches can be used to fix cracks in the tank. The tanks should be drained and the area around the crack should be dry before attempting the repair. In some cases, the tanks may need to be removed if the crack is in an inaccessible area.

7. Can you leave water in your fresh water tank?

It is generally agreed upon by most RVers that water stored in a freshwater tank should not be left for longer than two weeks. After this time, the water may become less safe for consumption and may develop unpleasant odors or promote the growth of mold, algae, and bacteria.

Editor's Notes

During our rv freshwater tanks & inlet research, we found 24 rv freshwater tanks & inlet products and shortlisted 10 quality products. We collected and analyzed 6,780 customer reviews through our big data system to write the rv freshwater tanks & inlets list. We found that most customers choose rv freshwater tanks & inlets with an average price of $169.20.

The rv freshwater tanks & inlets are available for purchase. We have researched hundreds of brands and picked the top brands of rv freshwater tanks & inlets, including A.A, RecPro, Ameri-Kart, classAcustoms, koxuyim. The seller of top 1 product has received honest feedback from 1,683 consumers with an average rating of 4.9.

Written by
David Davis Avatar

David Davis has rich experience as a mechanic and a general repairman in the automotive industry. It has given him plenty of knowledge in automobile repair, auto parts, and all kinds of tools. In his spare time, he enjoys assembling and disassembling parts for cars.