The Dometic replacement valve base is an essential plumbing component for RV water systems. This 1/2" female x 1/2" slip connection valve base serves as the foundation for water line connections in Dometic water heaters, holding tanks, and distribution systems. If your RV's water system is leaking at connection points or you're upgrading your plumbing setup, this OEM part ensures a reliable, leak-free fit.
- 1/2" female NPT inlet connection
- 1/2" slip outlet for flexible tubing or rigid pipe
- Durable plastic construction rated for RV water system pressures
- Direct replacement for original Dometic equipment
- Compatible with Dometic water heaters and tank assemblies
- Easy installation with standard plumbing tools
| Specification | Details |
|---|---|
| Part Number | 290330417 |
| Inlet Connection | 1/2" Female NPT |
| Outlet Connection | 1/2" Slip |
| Material | Engineered Plastic |
| Application | Dometic RV Water Systems |
| Pressure Rating | Standard RV System Pressure |
Frequently Asked Questions
Q: What is the difference between NPT and slip connections?
A: NPT (National Pipe Thread) connections have tapered threads and require thread sealant tape or compound for a watertight seal. Slip connections accept tubing or pipe without threads and are typically secured with hose clamps or compression fittings.
Q: Will this valve base fit my Dometic water heater?
A: This part is designed for Dometic water systems. Check your water heater's manual or existing valve base connection type (1/2" female NPT inlet and 1/2" slip outlet) to confirm compatibility before ordering.
Q: How do I install this replacement valve base?
A: Turn off water supply, drain the system, unscrew the old valve base from the tank or heater inlet, apply thread sealant tape to the new base's NPT threads, and screw it in hand-tight then snug with a wrench. Attach your water line to the slip outlet.
Why Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts for RV owners who need genuine OEM components. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock the exact parts you need to keep your water system running smoothly. Our expert support team is ready to help you identify and install the right replacement.
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 Genuine, name-brand components made to order — never generic, never outdated.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.