York MV12DN21 air filter size

Filter sizeNo filter inside

The York MV12DN21 is built without a filter rack, so its filter sits somewhere in the return: behind a grille on a wall, ceiling or closet door, or in the stand the unit sits on. That filter is sized by the grille or stand, not the unit. The size is printed on the old filter's edge.

If it sits on York's own filter base, that base takes a 20×24×1 filter.

Is this your unit?

The model number is on the label on the side of the unit or inside its front panel. It starts with MV12DN21. This page also covers MV12DN21C. Also sold as Coleman and Luxaire.

Not sure? Take a photo of the label and we'll read it for you.

If your filter isn't in the unit

Many closets have the filter behind a grille on the door, wall or ceiling instead. That one is sized by the grille, not the unit. The size is printed on the filter's edge, or you can photograph it on our home page.

Size from York's product specifications. If it doesn't fit, our fit guarantee sends a new one free. Caliper isn't affiliated with or endorsed by York.