Dometic Black Mesh Filter - Fits AT18 & AT18-MU Air Conditioners - Part# 235000529

DometicSKU: 235000529
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 12:02 PM

Sale price$150.02 Regular price$238.53
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The Dometic Black Mesh Filter (Part# 235000529) is a genuine OEM replacement filter designed specifically for Dometic AT18 and AT18-MU rooftop air conditioners. This essential filter protects your AC unit's internal components from dust, debris, and airborne particles while maintaining optimal airflow and cooling efficiency. Regular filter replacement ensures your RV air conditioner operates at peak performance and extends the life of your cooling system.

Key Features

  • Genuine Dometic OEM Part: Factory-spec mesh filter ensures perfect fit and performance in AT18 series air conditioners
  • Black Mesh Construction: Durable mesh material effectively captures dust and debris while maintaining proper airflow
  • Easy Installation: Direct replacement filter installs in minutes without tools or modifications
  • Protects AC Components: Prevents dust buildup on evaporator coils and internal components, extending unit lifespan
  • Maintains Cooling Efficiency: Clean filter ensures optimal airflow for maximum cooling performance
  • Washable & Reusable: Can be cleaned and reused multiple times before replacement is needed

Technical Specifications

Part Number 235000529
Color Black
Material Mesh
Filter Type Air Filter

Compatible Models

Model Series Compatible Units
AT18 Dometic AT18 Rooftop Air Conditioner
AT18-MU Dometic AT18-MU Rooftop Air Conditioner

Frequently Asked Questions

Q: How often should I replace or clean this filter?
A: Inspect and clean the filter monthly during heavy use. Replace the filter when it becomes damaged, torn, or no longer cleans effectively. Most RV owners replace this filter annually or every camping season.

Q: Can this filter be washed and reused?
A: Yes, this mesh filter is washable and reusable. Gently wash with mild soap and water, rinse thoroughly, and allow to dry completely before reinstalling. Avoid harsh chemicals or high-pressure washing that could damage the mesh.

Q: Will this filter fit other Dometic air conditioner models?
A: This filter is specifically designed for the AT18 and AT18-MU models. It may not fit other Dometic air conditioner series. Always verify your AC model number before ordering to ensure proper fit.

Q: What happens if I run my AC without a filter?
A: Operating your air conditioner without a filter allows dust and debris to accumulate on the evaporator coils and internal components, reducing cooling efficiency and potentially causing premature failure. Always keep a clean filter installed.

Why Choose Elkhart RV Parts?

At ElkhartRVParts.com, we specialize in hard-to-find Dometic replacement parts for RV owners who demand genuine OEM quality. Located in Elkhart, Indiana — the RV Capital of the World — we understand the importance of keeping your RV systems running smoothly. We stock authentic Dometic parts and ship fast so you can get back on the road quickly. Our team of RV parts experts is here to help you find exactly what you need with confidence.

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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