This black foam tube insulation is designed to wrap around refrigerant lines in Dometic RV refrigerators, preventing heat loss and condensation buildup. If your fridge isn't cooling efficiently or you see moisture accumulation on the exterior tubing, this replacement insulation restores proper thermal performance and protects your cooling system.
Key Features
- 2.125" inner diameter fits standard Dometic refrigerant tubing
- 0.375" wall thickness provides effective thermal insulation
- 6-foot length covers typical refrigerator line runs
- Closed-cell foam construction resists moisture absorption
- Black color blends with RV refrigerator cabinetry
- Easy slip-on installation—no tools required
Technical Specifications
| Specification | Detail |
|---|---|
| Inner Diameter (ID) | 2.125 inches |
| Wall Thickness | 0.375 inches |
| Length | 6 feet |
| Material | Closed-cell foam |
| Color | Black |
| Part Number | 290340340 |
Frequently Asked Questions
- Will this insulation fit my Dometic refrigerator model?
- This insulation is designed for Dometic refrigerators with 2.125" ID refrigerant tubing. Check your fridge's tubing diameter before ordering. If you're unsure, contact our expert support team—we can help identify the right part for your specific model.
- Can I cut this insulation to a shorter length?
- Yes, you can easily trim this foam tube insulation to fit your specific line run. Use a sharp utility knife for clean cuts, then slip the shortened section onto your refrigerant tubing.
- How do I install this insulation?
- Simply slip the foam tube over your existing refrigerant line. The 2.125" inner diameter is designed to fit snugly around standard Dometic tubing. No adhesive or fasteners are needed—gravity and the foam's natural fit hold it in place.
Why Choose Elkhart RV Parts?
We specialize in hard-to-find Dometic replacement parts that keep your RV running smoothly. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine OEM parts and provide expert support to help you find exactly what you need. When your refrigerator needs attention, we have the parts and the knowledge to help.
| Brand | Dometic |
|---|---|
| Product type | Refrigerator Tube Insulation |
| Color | Black |
| Inner diameter | 2.125 inches |
| Wall thickness | 0.375 inches |
| Length | 6 feet |
| Material | Foam |
| Part number | 290340340 |
| Compatible models | Dometic RM and NDR series |
| Application | Refrigerant line insulation |
| Purpose | Temperature efficiency and heat loss prevention |
| Part category | OEM Replacement Part |
| Type | Service Part |
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.