Dometic Tube Insulation - 3/4" ID x 1/2" Wall - 6ft - Part# 290336120

This Dometic tube insulation protects your RV's refrigerant lines, water lines, and other tubing from temperature loss and condensation buildup. The 3/4" inner diameter with 1/2" wall thickness fits standard Dometic cooling and plumbing systems. A 6-foot section gives you enough coverage for most repair or replacement jobs on mid-size RVs.

Key Features

• 3/4" inner diameter fits standard Dometic refrigerant and water lines
• 1/2" wall thickness provides effective thermal insulation
• 6-foot length covers typical line runs in most RV layouts
• Reduces heat loss and prevents condensation on cooling lines
• Easy to install—slides over existing tubing
• Genuine OEM Dometic part ensures compatibility and durability

Technical Specifications

Frequently Asked Questions

Will this insulation fit my Dometic refrigerator lines?
Yes, the 3/4" inner diameter is the standard size for Dometic RV refrigerant lines. Measure your existing tubing to confirm before ordering.

Can I cut this insulation to a shorter length?
Absolutely. You can easily trim this foam insulation to fit your specific line length using a utility knife or sharp scissors.

Does this prevent condensation on my AC lines?
Yes. The 1/2" wall thickness provides thermal protection that minimizes condensation buildup on cold refrigerant lines, helping prevent water damage inside your RV.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM Dometic equipment backed by our expert support team. When you need the exact part to keep your RV running smoothly, we have it in stock and ready to ship.