Dometic Backflow Prevention Valve 1/2" - Protects RV Water Systems - Part# 1070200

DometicSKU: 1070200
Added to catalog: March 11, 2026
Last product update: June 5, 2026 at 11:18 PM

Sale price$523.74 Regular price$832.75
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The Dometic 1070200 Backflow Prevention Valve is a critical safety component that protects your RV's fresh water system from contamination. This 1/2" valve prevents water from flowing backward into your potable water supply, ensuring your drinking water stays clean and safe. Essential for RV owners who connect to external water sources at campgrounds or use their water pump system.

Key Features

  • Prevents Contamination: Stops backflow to protect your fresh water system from contaminated water sources
  • Standard 1/2" Connection: Fits most RV water system plumbing configurations
  • Genuine Dometic OEM Part: Manufactured to exact specifications for reliable performance
  • Durable Construction: Built to withstand the vibration and temperature changes of RV travel
  • Easy Installation: Direct replacement part that installs in minutes
  • Code Compliant: Meets plumbing safety standards for potable water systems

Technical Specifications

Part Number 1070200
Connection Size 1/2 inch
Function Backflow Prevention
Application RV Fresh Water Systems
Type Check Valve

Frequently Asked Questions

Why do I need a backflow prevention valve in my RV?

A backflow prevention valve protects your fresh water tank and plumbing from contamination when connected to campground water supplies. If pressure drops in the external source, water from your tank won't flow backward into the campground system, and contaminated water can't enter your RV's potable water supply.

Where is this valve installed in my RV water system?

The backflow prevention valve is typically installed in the fresh water line between your water pump and the rest of your plumbing system, or in the city water connection line. Check your RV's plumbing diagram or consult your owner's manual for the exact location in your specific model.

How do I know if my backflow valve needs replacement?

Signs of a failing backflow valve include reduced water pressure, water flowing in the wrong direction, leaking around the valve body, or unusual noises when the water pump runs. If you notice any of these symptoms, replacement is recommended to maintain water system safety and performance.

Can I install this valve myself?

Yes, most RV owners with basic plumbing skills can install this valve. You'll need to shut off your water system, drain the lines, remove the old valve, and install the new one with proper thread sealant. Ensure the valve is oriented correctly for proper flow direction (usually marked with an arrow on the valve body).

Why Choose Elkhart RV Parts?

At Elkhart RV Parts, we specialize in hard-to-find Dometic replacement parts like this backflow prevention valve. Located in Elkhart, Indiana — the RV Capital of the World — we understand the importance of keeping your RV's water system safe and functional. We stock genuine OEM Dometic parts and ship them fast so you can get back to enjoying your travels with confidence.

Our team of RV parts experts is here to help you find the exact component you need. Whether you're a weekend warrior or a full-time RVer, we're committed to providing authentic Dometic parts backed by knowledgeable support.

100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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