

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.
🛠️ Keep your RV’s water flowing forward—no leaks, no worries!
The Camco RV Water Heater Backflow Preventer is a robust, brass-constructed valve designed to allow water flow only towards your RV’s water heater, preventing backflow into your freshwater system. Featuring a ½-inch male x female NPT fitting and a stainless spring, it offers durable, reliable protection and easy installation, making it a trusted upgrade for RV owners seeking to safeguard their water quality.






















| ASIN | B000EDUTN6 |
| Best Sellers Rank | #34,348 in Automotive ( See Top 100 in Automotive ) #71 in RV Freshwater Hoses & Fittings |
| Brand Name | Camco |
| Color | Brass |
| Connector Type | NPT |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,377) |
| Exterior Finish | Brass |
| Global Trade Identification Number | 00014717233033 |
| Included Components | Back-Flow Preventer 1/2" (E/F/S) (CLAM) LLC |
| Item Dimensions | 5.5 x 3.63 x 2.25 inches |
| Item Type Name | Camco RV Water Heater Backflow Preventer |
| Item Weight | 0.28 Pounds |
| Manufacturer | Camco |
| Manufacturer Warranty Description | Limited 1 Year |
| Material Type | Blend |
| Model Number | 23303 |
| Number of Pieces | 1 |
| Size | 1 Count (Pack of 1) |
| Thread Size | 0.5 inch |
| Thread Type | NPT |
| UPC | 014717233033 |
| Unit Count | 1.0 Count |
R**L
RV pump
These work great for installing before the pump in a RV when the one in the pump fails & fills your fresh water tank.
C**Y
I feel good about getting brass over plastic.
Feels like it’s very solid construction. Easy to install. Used Teflon tape on the installation and have some very slight leakage. I mean very slight. I’m going to get some pipe dope and reassemble and see if that stops it completely from dripping. Happy I went with brass to replace the plastic one that failed.
A**K
Works Perfectly to Prevent Backflow!
I purchased the Camco RV Water Heater Backflow Preventer to address my issue with city water filling my freshwater tank in my RV, and it worked like a charm! I installed it on the suction side of the pump, and it completely resolved the problem. The installation was straightforward, and the product feels solid and well-made. It’s a must-have for any RV owner looking to prevent backflow issues. Highly recommended!
J**C
Threads are very tight and rough. Should have been factory burnished.
Be aware the thread quality on these is very tight and rough and should have been burnished by the factory. When screwing into our ABS trailer water pump, the starter threads on these are so tight that it has a tendency to cross thread. I had to file and burnish the first few threads so it would properly receive the female threads to the water pump. Other than that, it works very well to keep water from backflowing into the trailer tank when using a city water hose hookup.
D**L
Fixed the problem.
Well made and an easy fix for my RV water heater problem. Turns out a stuck/clogged back flow valve is a common problem and this fixed it super easy.
A**.
very good
great
I**R
Fix your backfill problem
Pump backfilled the fresh water tank. Thought I needed a new pump, but this was a much cheaper fix. 10/10 would recommend if you have this problem.
D**E
Works much Britt
Perfect replacement, no leaks, easy industrial and much better made than the plastic ones
N**A
Excelente material y funcionamiento
J**N
Good quality, worked as expected
C**N
Used to alternate automatically between two water sources while preventing backflow.
G**S
Corresponde al articulo publicado, material y acabados de buena calidad, funcionamiento optimo, facil instalación.
M**S
works good but changed to different method
Trustpilot
3 weeks ago
1 month ago