Micro Allergen Pleated Furnace Filter, Red, 18 x 30 x 1-In. Rust-Oleum A center MaxEdge vial enables

A center MaxEdge vial enables users to scribe continuous lines with an improved view

5ft and 6ft models have a unique H spreader with hand grip for easy one-handed carrying and closing

Features oversized 1/2 In

Straight Flutes Are Ground To Provide Rapid Chip Removal For Efficient Threading

Micro Allergen Pleated Furnace Filter, Red, 18 x 30 x 1-In. Rust-Oleum A center MaxEdge vial enables18" x 30" x 1", red, micro allergen filtrete pleated filter, 3 month filter is 90% effective at capturing large allergens like mold spores & pet dander, electrostatically charged, captures microscopic allergens like dust, smoke & smog, captures bacteria & particles that can carry viruses, meets the guidelines of the american lung association health house program, mpr rating 1000, lasts up to 3 months.