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Filter King 13x21x1 Air Filter MERV 8, AC Furnace Filters (6-Pack) | Dust & Allergy Control (Actual Size: 13 x 21 x .75)
You save $5.22
As of Oct 11, 2026, 11:42 UTC, Filter King 13x21x1 Air Filter MERV 8 is $46.99 at Amazon, 10% below the $52.21 list price.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
You save $24.75
as of 11:42 AM UTC
Filter King furnace and AC filters measure 13 by 21 by 0.75 inches (actual size) and carry a MERV 8 rating for dust and allergy control. This six-pack provides multiple filters for regular replacement cycles in your HVAC system.
Verify that 13x21x1 is the correct size for your furnace or air handler before ordering—filter dimensions must match your system exactly. Confirm the current price and availability on the retailer's site.
You save $10.00
as of 12:42 PM UTC
You save $4.00
as of 12:42 PM UTC
You save $14.70
as of 12:42 PM UTC
You save $16.00
as of 11:42 AM UTC
Pack: 3-pack · Color: Blue
You save $6.50
as of 11:42 AM UTC
