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 (77)
Filters
Search
Size
Brand
Thickness
MERV
Show (77)
Cancel
Glasfloss, 12x12x1, Disposable, Replacement Air Filters. Great for Economical Air Filtration.

Glasfloss GDS 12x12x1

Size: 12x12x1

MERV: 5

Case: 6 / 12

$28.10 – $53.05

VIEW PRODUCT
Glasfloss, 10x30x1, Disposable, Replacement Air Filters. Great for Economical Air Filtration.

Glasfloss GDS 10x30x1

Size: 10x30x1

MERV: 5

Case: 6 / 12

$37.40 – $70.50

VIEW PRODUCT
Glasfloss, 10x25x1, Disposable, Replacement Air Filters. Great for Economical Air Filtration.

Glasfloss GDS 10x25x1

Size: 10x25x1

MERV: 5

Case: 6 / 12

$44.52 – $83.95

VIEW PRODUCT
PGAPXCAR2025 Air Purifier Cartridge 20x25x3 Air Filter

Bryant / Carrier Air Purifier Cartridge – PGAPXCAR2025-A02

Size: 20x25x3

MERV: 13

Case: 2

$313.90

VIEW PRODUCT
PGAPXCAR1620 Air Purifier Cartridge 16x20x3 Air Filter

Bryant / Carrier Air Purifier Cartridge – PGAPXCAR1620-A02

Size: 16x20x3

MERV: 13

Case: 2

$285.50

VIEW PRODUCT
PGAPXCAR2420 Air Purifier Cartridge 24x20x3 Air Filter

Bryant / Carrier Air Purifier Cartridge – PGAPXCAR2420-A02

Size: 24x20x3

MERV: 13

Case: 2

$320.60

VIEW PRODUCT
PGAPXCAR2020 Air Purifier Cartridge 20x20x3 Air Filter

Bryant / Carrier Air Purifier Cartridge – PGAPXCAR2020-A02

Size: 20x20x3

MERV: 13

Case: 2

$289.80

VIEW PRODUCT
Lennox Healthy Climate X0445 Expandable Air Filter

Lennox Healthy Climate PMAC-20C X0445

Size: Expandable

MERV: 11

Case: 1

$79.95

VIEW PRODUCT
Lennox Healthy Climate 19L14 Media Air Filter - 20x20x5 Air Filters

Lennox Healthy Climate 19L14

Size: 20x20x5

MERV: 13

Case: 2

$126.00

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​