Filtrete™ MPR 1000 Allergen Defense Air Filters (4" - 6") 25" x 25" x 1" Size:25" x 25" x 1" Can be installed using either

Can be installed using either the traditional method using back clips

a high quality inner

4 rivets attach top to each rail

fits hole saws 9l to 19l

Filtrete™ MPR 1000 Allergen Defense Air Filters (4" - 6") 25" x 25" x 1" Size:25" x 25" x 1" Can be installed using eitherOpt for a Filtrete Allergen Defense Air Filter to transform your central heating and cooling system into a whole home air filtration operation. This no nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog). OUTPERFORMS FIBERGLASS, WASHABLE AND NON ELECTROSTATIC 3 month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system DESIGNED WITH