Keep your RV air conditioner breathing clean with genuine Coleman Mach replacement filters designed specifically for non-ducted ceiling assembly units. This set of two MERV 6 filters traps dust, pet hair, and large airborne particles before they can coat your evaporator coil and rob your system of cooling efficiency.
Non-ducted ceiling assemblies deliver conditioned air directly into the RV interior through a ceiling-mounted return and supply grille rather than through ductwork. That means the filter sits right at the ceiling assembly and catches everything before it reaches the blower and coil. A clogged or missing filter leads to reduced airflow, ice buildup on the evaporator, and compressor strain -- problems that are entirely avoidable with routine filter swaps.
Part number 9430-3441 is the factory-specified replacement filter for compatible Coleman Mach non-ducted ceiling assemblies. Buying a two-pack lets you keep one installed and one on the shelf so you are never caught running without filtration.
Captures dust, pollen, lint, and pet hair before they reach the evaporator coil and blower wheel.
Designed specifically for Coleman Mach ceiling assemblies that supply air directly into the RV interior -- no duct adapter needed.
Two filters per package so you always have a spare on hand for your next filter change on the road or at the campsite.
Coleman Mach part 9430-3441 -- direct factory replacement, no trimming or modification required.
RV air conditioners work harder than residential units. They operate in dusty campgrounds, near fire pits, through desert sand, and in high-humidity coastal air. The filter is the first line of defense for the evaporator coil. Once a filter mats over with debris, airflow drops and the coil temperature falls below the dew point of the return air -- ice forms, efficiency crashes, and the unit may cycle on the high-pressure limit.
For most full-timers and seasonal campers, inspecting the filter every 30 days and replacing it every 60-90 days is a reasonable baseline. If you camp in dusty or high-pollen environments, or if you travel with pets, shorten that interval.
A clean MERV 6 filter prevents dust accumulation on the evaporator fins. Dirty fins act as insulation, raising the refrigerant head pressure and increasing compressor wear. Routine filter replacement is the single lowest-cost maintenance action you can take to extend compressor life.
Replacing the filter in a Coleman Mach non-ducted ceiling assembly is a straightforward task that requires no tools on most units:
The entire swap typically takes under five minutes with the A/C already off. No ladder required if your ceiling assembly is accessible from standing height inside the RV.
Part 9430-3441 is specified for Coleman Mach non-ducted ceiling assemblies. If your unit uses a ducted distribution system -- one where conditioned air travels through overhead ducts to individual vents -- verify the correct filter part number for your specific assembly before ordering. Non-ducted and ducted assemblies use different filter sizes and frames.