Keep your Dometic rooftop air conditioning unit running efficiently with this genuine OEM polyester air filter. Designed specifically for AT15 and AT18 models, this replacement filter traps dust, pollen, and debris to maintain optimal airflow and cooling performance in your RV. Regular filter replacement extends the life of your AC system and ensures cleaner cabin air.

Key Features

• Genuine OEM Dometic part for AT15 and AT18 rooftop AC units
• Polyester construction for reliable dust and debris capture
• Easy drop-in replacement — no special tools required
• Improves cooling efficiency and extends AC compressor life
• Recommended replacement every 1-2 seasons depending on use
• Helps maintain better indoor air quality while traveling

Technical Specifications

Part Number	235000925
Compatible Models	Dometic AT15, AT18
Filter Material	Polyester
Type	Rooftop AC Air Filter

Frequently Asked Questions

How often should I replace this air filter?
We recommend replacing your Dometic rooftop AC filter every 1-2 seasons, or more frequently if you travel in dusty environments. A clogged filter reduces cooling efficiency and strains your AC compressor.

Will this filter fit my Dometic AT15 or AT18 unit?
Yes — this is a genuine OEM Dometic part designed specifically for AT15 and AT18 rooftop air conditioning models. Always verify your model number before ordering to ensure proper fit.

Is installation difficult?
No. This is a straightforward drop-in replacement. Most RV owners can swap the filter in minutes without tools. Consult your owner's manual for exact filter access location on your specific 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 we sell is genuine OEM Dometic equipment backed by our expert support team. When you need the exact part for your RV, we have it in stock and ready to ship.