This Dometic PVC adapter connects two different pipe sizes in your RV's water system, plumbing, or appliance lines. The 0.5" male pipe thread (MPT) inlet connects to standard fittings, while the 0.75" hose barb (HB) outlet accommodates larger diameter tubing. Essential for RV owners repairing or upgrading water supply lines, waste systems, or appliance connections.
Key Features
- 0.5" MPT (male pipe thread) inlet for standard threaded connections
- 0.75" hose barb outlet for secure tubing attachment
- Durable PVC construction resistant to RV water system conditions
- Direct Dometic OEM replacement part
- Compact design fits tight spaces in RV cabinets and compartments
- Compatible with fresh water, gray water, and black water systems
Technical Specifications
| Specification | Value |
|---|---|
| Inlet Connection | 0.5" MPT (Male Pipe Thread) |
| Outlet Connection | 0.75" Hose Barb |
| Material | PVC |
| Part Number | 290335210 |
Frequently Asked Questions
What size tubing fits the 0.75" hose barb outlet?
The 0.75" hose barb is designed to accommodate tubing with an inner diameter of approximately 0.75 inches. Always verify your tubing size before ordering to ensure a proper fit.
Can I use this adapter in both fresh and waste water systems?
Yes, this PVC adapter is compatible with fresh water, gray water, and black water systems. PVC is resistant to the conditions found in all three RV water systems.
How do I connect the hose barb end?
Slide your tubing over the barbed outlet and secure it with a hose clamp. The barbs grip the tubing to prevent leaks. Tighten the clamp firmly but do not over-tighten, which can damage the tubing.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts for RV owners who need exact OEM components. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine Dometic parts with expert support to help you identify and install the right component for your rig.
| Brand | Dometic |
|---|---|
| Product_type | PVC Adapter |
| Part_type | OEM Replacement |
| Inlet_connection_type | Male Pipe Thread (MPT) |
| Inlet_size | 0.5 inch |
| Outlet_connection_type | Hose Barb |
| Outlet_size | 0.75 inch |
| Material | PVC |
| Length_inches | 7.3 |
| Width_inches | 6.3 |
| Height_inches | 4.2 |
| Weight_lbs | 0.4 |
| Country_of_origin | USA |
| Application | RV Water System Plumbing |
| Features | Leak-free fitLightweightSecure connectionDurable for regular use |
| Category | RV Plumbing 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.