Accumulair FC17X21A_4 MERV 6 Rating Air Filter/Furnace Filters, 17x21x1 (Actual Size) - 4 pack
Brand: Accumulair

Economical, high-capacity media makes this filter an ideal upgrade from standard fiberglass throwaways. Rugged and durable. Will not warp or leak under normal operating conditions. Excellent for high-velocity systems and maximum air flow. Each filter lasts up to 90 days. Manufactured and sold by Filters-NOW in the USA.

Actual Size of Filter: 17 x 21 x 0.75
MERV 6 Rating. Each filter lasts up to 3 months.
Economical, high-capacity media makes this filter an ideal upgrade from standard fiberglass throwaways.
Made in the USA. Manufactured by Filters-NOW.
4 Pack of Air Filters