All filters are made in the USA + Free Shipping on orders over $50

Home / Air Filter Sizes / 11.5x21x1a

11.5x21x1 Air Filter Merv 8
11.5x21x1 AC Filter Merv 11
11.5x21x1 Furnace Filter Merv 13
11.5x21x1 Filter Merv 13 Titanium
11.5x21x1 Filter Merv 10 Carbon

11.5x21x1 Air Filter MERV 13

AC Furnace Air Filter 11.5x21x1 -Inches MERV 13

{{ yotpoProductReviewsCount.average_score.toFixed(1) }} star rating
{{ yotpoProductReviewsCount.total_review }} {{ yotpoProductReviewsCount.total_review > 1 ? 'Reviews' : 'Review'}}

1. Select Filter Quality

Standard
Good
Better
Best
Odor Eliminator

2. Select Quantity

${{ money(priceWithoutDiscount()) }} Save ${{ money(savePrice()) }} ({{ savePercent()}}%)
OR

Product Description

Item Model Number: FKFB11.5X21A
Brand: Filter King
Filter size: 11.5x21x1
Actual Size: 11.5 x 21 x .75
1-Inch Filter
MERV 8 Filter Rating
Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
Residential / Commercial Use

Manufactured in the US

11.5x21x1a Air Filter Reviews