About Mainstream Air Filters

Resources / FAQ

My Account

Air Filters - HVAC Filters - Furnace Filters - A/C Filters

All Air Filters

Browse our extensive catalog of hand selected air filters!

Product Filters

Filtered (54)
Filters
Search
Size
Brand
Thickness
MERV
Show (54)
Cancel
Nordic Pure, 12x12x1, pleated, MERV 8, air filter.

Nordic Pure 12x12x1

Size: 12x12x1

MERV: 8

Case: 6 / 12 / 24

$71.99 – $189.99

VIEW PRODUCT
Nordic Pure, 10x24x1, pleated, MERV 8, air filter.

Nordic Pure 10x24x1

Size: 10x24x1

MERV: 8

Case: 6 / 12 / 24

$85.99 – $259.99

VIEW PRODUCT
Carrier 21-1/2x23-5/16x1 Custom Pleated Filters - 21-1-2-x-23-5-16-x-1

Carrier 21-1-2-x-23-5-16-x-1 Custom Pleated Filters

Size: 21-1/2x23-5/16x1

MERV: 8

Case: 6 / 12

$94.95 – $170.90

VIEW PRODUCT
Carrier 19-7/8x21-1/2x1 Custom Pleated Filters - 19-7-8-x-21-1-2-x-1

Carrier 19-7-8-x-21-1-2-x-1 Custom Pleated Filters

Size: 19-7/8x21-1/2x1

MERV: 8

Case: 6 / 12

$89.95 – $161.90

VIEW PRODUCT
Standard Filter Pads - Poly Fiber Replacement Media Pads

Standard Filter Pads – Case of (6)

Size: Multiple Sizes Available

MERV: 6 or 8

Case: 6

$15.60 – $124.80

VIEW PRODUCT
Standard Metal Filter Frames w/ Orange Media Pads

Standard Metal Filter Frame w/ 6 Pads

Size: Multiple Sizes Available

MERV: 6 or 8

Case: 6

$49.95 – $186.65

VIEW PRODUCT
Glasfloss, 10x24x1, Disposable, Replacement Air Filters. Great for Economical Air Filtration.

Glasfloss GDS 10x24x1

Size: 10x24x1

MERV: 5

Case: 6 / 12

$37.99 – $67.99

VIEW PRODUCT
Nordic Pure, 10x10x1, pleated, MERV 8, air filter.

Nordic Pure 10x10x1

Size: 10x10x1

MERV: 8

Case: 6 / 12 / 24

$74.99 – $174.99

VIEW PRODUCT
Glasfloss, 20x20x1, Disposable, Replacement Air Filters. Great for Economical Air Filtration.

Glasfloss GDS 20x20x1 (Case of 12)

Size: 20x20x1

MERV: 5

Case: 12

$74.90

VIEW PRODUCT

Contact Us

Phone
Email

Company Policy

About Mainstream Air Filters

Refund & Return Policy

Privacy Policy

Services

HVAC Contractors

Filter Subscription

Knowledge Center

Resources / FAQ

© 2025 All rights reserved

Made with Elementor​