About Mainstream Air Filters

Resources / FAQ

My Account

16x20x4 Air Filters

Browse our selection of personally curated 16x20x4 furnace and A/C filters.

Columbia GPF HP8 16 20 4 Media Air Filter - Columbia Air Filters - 16x20x4 Air Filter

Columbia GPF HP8 16 20 4

Size: 16x20x4

MERV: 8

Case: 6

$129.95

VIEW PRODUCT
Carrier FILCCFNC0017 Pleated Media Filters. 2PK - 16x20x4 Air Filter

Carrier FILCCFNC0017

Size: 16x20x4

MERV: 8 or 11

Case: 2

$104.95 – $114.95

VIEW PRODUCT
Carrier TopTech TT-FM-1620 Media Air Filter - 16x20x4 Air Filter

Carrier TopTech TT-FM-1620

Size: 16x20x4

MERV: 11

Case: 2

$79.95

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​