Dometic 2.0" MPT Bronze Hose Barb Adapter - Part# 290333741

DometicSKU: 290333741
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 11:29 AM

Sale price$280.66 Regular price$446.25
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This Dometic hose barb adapter is an essential plumbing component for RV water systems, waste systems, and appliance connections. The 2.0" male pipe thread (MPT) bronze construction provides reliable, corrosion-resistant connections for fresh water, gray water, and black water applications. RV owners and technicians rely on this adapter to create secure barbed hose connections that won't leak or separate during travel.

  • 2.0" male pipe thread (MPT) inlet for standard RV plumbing connections
  • Bronze construction resists corrosion in freshwater and saltwater environments
  • Barbed outlet accommodates standard hose fittings with hose clamps
  • Durable, leak-proof design rated for RV water system pressures
  • Direct replacement for original Dometic plumbing systems
  • Compatible with fresh water, gray water, and black water applications
Specification Detail
Part Number 290333741
Inlet Size 2.0" MPT (Male Pipe Thread)
Material Bronze
Connection Type Hose Barb Outlet
Application RV Water Systems, Appliances
Manufacturer Dometic

Frequently Asked Questions

Q: What size hose does this adapter accept?
A: This adapter features a barbed outlet designed for standard RV hose sizes. Measure your existing hose outer diameter and use appropriately-sized hose clamps to secure the connection. Common sizes are 1/2", 5/8", and 3/4" hose.

Q: Can I use this for my black water tank system?
A: Yes. The bronze construction and barbed design make this adapter suitable for fresh water, gray water, and black water applications throughout your RV's plumbing system.

Q: How do I know if this is the right replacement for my Dometic system?
A: Verify the part number 290333741 matches your original adapter, or confirm your system uses a 2.0" MPT inlet connection. If you're unsure, our expert support team can help identify the correct part for your RV model.

Why Choose Elkhart RV Parts?

We specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana — the RV capital of the world. Every part is genuine OEM Dometic equipment backed by expert support to ensure you get the exact component your RV needs.

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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