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  • VIDEO
Camco Water Tank Filler with Shutoff Valve- Quickly and Efficiently Helps Fill Your Water Tank an...Merchant Video
  • CAMCO RV Water Tank Filler with Shutoff Valve | Quickly and Efficiently Helps Fill Your Water Tank and Eliminate Line Backflow | Features a 5/8 inch Tube (40003)
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CAMCO RV Water Tank Filler with Shutoff Valve | Quickly and Efficiently Helps Fill Your Water Tank and Eliminate Line Backflow | Features a 5/8 inch Tube (40003)

4.6 out of 5 stars 7,368 ratings
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Purchase options and add-ons

  • Fill the water tank in a fraction of the usual time
  • Quarter-turn pressure-sealed valve helps to selectively control the water flow
  • Large 5 by8 inch fill tube helps to fill the water tank at or near full pressure while minimizing line backflow
  • 5 by8 inch fill tube
  • Compliant with all federal and state level low lead laws. CSA Low Lead Content Certified to NSF:ANSI 372
  • Fill the water tank in a fraction of the usual time
  • Quarter-turn pressure-sealed valve helps to selectively control the water flow
› See more product details

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Top Brand: Camco

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  2. Camco makes quality products for RVing, boating, camping, towing, tailgating, grilling and more. Our products help take your passion for the outdoors to the next level.

    At heart, Camco is a small company with big aspirations. Since 1966, we have earned a reputation for providing superior goods with high customer approval.

  3. Woman putting blanket inside Camco Pop-Up Utility Container
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    What's New

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From the manufacturer

Camco Water Tank Filler with Shutoff Valve

RV water tank filler with shutoff valve; RV water tank filler; RV accessories
water tank filler with shutoff valve; RV water tank filler; RV water tank filler with shutoff valve

Fills your Water Tank in a Fraction of the Time

Camco RV Water Tank Filler with Shutoff Valve helps fill your water tank in a fraction of the usual time and eliminates 'bubble-back'.

Large 5/8-inch fill tube allows you to fill your camper, trailer or motorhome water tank at or near full pressure while minimizing line backflow.

Quarter-turn pressure-sealed valve allows you to selectively control water flow.

About Camco Manufacturing

Camco; Camco Manufacturing; RV; RVing; Camping; RV accessories; camping accessories
Our Brands:

Our diverse flagship brands include: Rhino, TastePURE, Hydro Life, TST, Power Grip, Eaz-Lift, Life is Better at the Campsite, FasTen, Black Boar, Currituck, Kuuma, Olympian, TRAC, Crooked Creek and Camping Essentials.

Camco makes quality products for RVing, boating, camping, towing, tailgating, grilling and more. Our products help take your passion for the outdoors to the next level.

At heart, Camco is a small company with big aspirations. Since 1966, we have earned a reputation for providing superior goods with high customer approval.

We also work with inventors, entrepreneurs and small businesses to bring innovative products into the marketplace.

At our core, we believe in manufacturing exceptional products and delivering superior service – all while providing a great customer experience.

Our company headquarters is located in Greensboro, North Carolina. Camco also has numerous manufacturing facilities in the United States and around the globe.

Explore your outdoor passion with Camco. Great memories are only an adventure away.

Product description

鶹.ca Product Description

Camco RV Water Tank Filler with Shutoff Valve helps fill your water tank in a fraction of the usual time and eliminate “bubble-back.“ Large 5/8" fill tube allows you to fill your camper, trailer or motorhome water tank at or near full pressure while minimizing line backflow. Quarter-turn pressure-sealed valve allows you to selectively control water flow.

From the Manufacturer

Camco RV Water Tank Filler with Shutoff Valve helps fill your water tank in a fraction of the usual time and eliminate “bubble-back.“ Large 5/8-Inch fill tube allows you to fill your camper, trailer or motorhome water tank at or near full pressure while minimizing line backflow. Quarter-turn pressure-sealed valve allows you to selectively control water flow.

Product information

Technical Details

Manufacturer ‎Maurice
Place of Business ‎Greensboro, NC 27409, US
Brand ‎Camco
Model ‎40003
Product Dimensions ‎2.54 x 2.54 x 2.54 cm; 72.57 g
Item model number ‎40003
Is discontinued by manufacturer ‎No
Exterior ‎Multicolored
Manufacturer part number ‎40003
OEM part number ‎40003
Item Weight ‎72.6 g
Country of origin ‎China

Additional Information

ASIN B0006IX850
Customer Reviews
4.6 out of 5 stars 7,368 ratings

4.6 out of 5 stars
鶹 Rank
Date First Available July 6 2011

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CAMCO RV Water Tank Filler with Shutoff Valve | Quickly and Efficiently Helps Fill Your Water Tank and Eliminate Line Backflow | Features a 5/8 inch Tube (40003)

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Customer reviews

4.6 out of 5 stars
7,368 global ratings

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Customers say

Customers like the functionality, ease of use, and spill prevention of the product. They mention it works great for filling the trailer tank, is a very convenient way to fill watering cans and buckets, and makes fillups much easier. Customers also appreciate the perfect fit, water flow control, and hose retention.

Select to learn more

FunctionalityEase of useSpill preventionFitWater flow controlHose retention
119 customers mention "Functionality"117 positive2 negative

Customers like the functionality of the product. They mention it works great for filling the trailer tank, watering cans, and hard to fill fresh water tanks. Some say it's a perfect solution for hard to fill water tanks and a surprisingly good shutoff valve.

"...Works great and the shut off works well. Keeps us from moving the trailer for handwashing water...." Read more

"Great product, would like it if it was a little longer." Read more

"Does exactly what you bought it for, works great!" Read more

"Good product..." Read more

70 customers mention "Ease of use"70 positive0 negative

Customers like the ease of use of the product. They mention it's a convenient way to fill watering cans and buckets. They say it makes filling the water tank on their travel trailers much easier and hands-free. Some say it's an essential tool for every RV'er and is reasonably priced.

"Bought to use with our travel trailer. Very handy. Easy to use. Works well. Easy to store as well." Read more

"Simple attachment makes it easy to fill water tanks. Received many comments from other RV owners that they need to buy one." Read more

"Does what it says. Very handy." Read more

"Very simple to use and allows you to get on with something else while your tank is filling. Works as advertised." Read more

10 customers mention "Spill prevention"10 positive0 negative

Customers like the product for its spill prevention. They mention it reduces spills, doesn't leak, and avoids the spray. Customers also say it fills the tank well without any spills.

"...leave it on the kitchen counter and pour water for my needs, and with no mess" Read more

"It does exactly what it says on the tin. No mess, no leaks, and with better control over volumes of water in the freshwater tank...." Read more

"...works as expected no issues getting water in the water tank and not making a mess." Read more

"...Avoid the spray and easily turn on or off without losing a lot of flow like with a garden hose." Read more

9 customers mention "Fit"9 positive0 negative

Customers like the fit of the product. They mention it fits into the water input in their trailer nicely when filling the water tank. Customers also say it allows for one-person water tank fill ups.

"This is a great hose fitting to fill the holding tank with water.I didn't spill a drop.I recommend this.The service was good and on time.Thank you." Read more

"This tool works very well and I definitely recommend. Fits into the water input in our trailer nicely when filling the water tank." Read more

"Works as expected. Fits into the fresh water tank inlet and allows you to easily fill the tank without worrying about the hose falling out." Read more

"This is a must have. Use all the time for filling up fresh water tank." Read more

8 customers mention "Water flow control"8 positive0 negative

Customers like the water flow control of the product. They mention it's a great way to manage the flow of water coming in when filling the water tank in an RV. They also say it allows for better control over volumes of water in the freshwater tank.

"Great way to manage the flow of water coming in when filling the water tank in an RV." Read more

"...No mess, no leaks, and with better control over volumes of water in the freshwater tank. A must-have for any RV." Read more

"Works great, the ball valve opens right you so you get great water flow and it shuts off easily." Read more

"Awesome for filling the freshwater tank and controlling the flow!" Read more

4 customers mention "Hose retention"4 positive0 negative

Customers like the hose retention feature of the product. They mention it keeps the hose from popping out when filling the tank.

"Good, keeps hose from popping out and has the shut off so you are not running back to the tap when full." Read more

"...No longer holding the hose, stuff it in and walk away." Read more

"No more hose coming out when filling" Read more

"No need to hold hose while filling tank..." Read more

Top reviews from Canada

  • T Lasiuk
    5.0 out of 5 stars A must for filling your white tank
    Reviewed in Canada on December 13, 2024
    Verified Purchase
    Such a simple little device that is a huge quality of life enhancement
    Helpful
     Report
  • K.S Wood
    5.0 out of 5 stars Very handy
    Reviewed in Canada on August 13, 2024
    Verified Purchase
    Bought to use with our travel trailer.
    Very handy. Easy to use. Works well.
    Easy to store as well.
    Helpful
     Report
  • 鶹 Customer
    4.0 out of 5 stars Works great
    Reviewed in Canada on September 30, 2024
    Verified Purchase
    Not much to say ! Does what I want it to do !!
    Helpful
     Report
  • Exzacklee
    5.0 out of 5 stars Good for price.
    Reviewed in Canada on July 10, 2025
    Verified Purchase
    Good price for quality. Works ok. Wish bit thinner hard to get into campers water hole
    Helpful
     Report
  • IHS
    5.0 out of 5 stars It works
    Reviewed in Canada on September 20, 2024
    Verified Purchase
    This is a simple gadget that does what it's supposed to. The attached ball valve is a nice feature.
    Saves having to hold the garden hose in place while waiting for the freshwater tank to fill on my travel trailer.
    Helpful
     Report
  • Norm stringer
    5.0 out of 5 stars It does work
    Reviewed in Canada on May 9, 2025
    Verified Purchase
    Great price fast delivery
    Helpful
     Report
  • Mcgyvr
    5.0 out of 5 stars Great price!
    Reviewed in Canada on January 4, 2025
    Verified Purchase
    Works Great!
    Helpful
     Report
  • Scott L
    5.0 out of 5 stars As described
    Reviewed in Canada on April 1, 2025
    Verified Purchase
    As described
    Helpful
     Report

Top reviews from other countries

  • 鶹 Customer
    5.0 out of 5 stars Handy
    Reviewed in the United States on July 19, 2025
    Verified Purchase
    Perfect little attachment to easily fill my water tanks. Use it every time.
    Report
  • Steve
    5.0 out of 5 stars Works as expected
    Reviewed in the United States on July 14, 2025
    Verified Purchase
    Works great. can be used to rinse areas that are hard to reach.
    Report
  • Mike & Allisha
    5.0 out of 5 stars Works as designed
    Reviewed in the United States on June 29, 2025
    Verified Purchase
    Works well, valves doesn’t leak which is all I ask for.
    Report
  • 鶹 Customer
    4.0 out of 5 stars Fits the hose
    Reviewed in the United States on January 13, 2025
    Verified Purchase
    Helps filling the tank
    Report
  • Ethan
    5.0 out of 5 stars Must have for RV
    Reviewed in the United States on June 15, 2025
    Verified Purchase
    Best thing to fill fresh water tank on our camper. Been using this now for few years adn still works great.
    Report