4" Inch Filters

4 Inch Air Filters at

At, we pride ourselves by delivering you the top of the line 4 inch air filter products at the lowest prices. We have several 4 inch filter sizes, whether you need a16x20x4 size or up to the larger 24x24x4 filter, plus you can choose from MERV 8, MERV 11, or MERV 13 filter ratings to suit your air filtration quality requirements. Your order generally will ship out of our warehouse within one business day; we pride ourselves on being able to fulfill you order as fast as possible along with offering free shipping and returns.

Electrostatic Air Filters are manufactured with a consistent pleat shape on predetermined centers causing particles to collect evenly over the entire surface.

We Deliver Wholesale Pricing on 4 Inch Air Filters. wholesale discount pricing on 4 inch furnace filters means you can save on cost without skimping on quality. We offer additional discounts on orders above $60 and $100, plus we can offer additional bulk wholesale prices on request for special orders. As with all of our products, you will receive fast free shipping as well as our convenient 180-day returns policy.

We take care of our loyal repeat customers.

We appreciate our repeat customers and understand you have options on where you choose to shop. This is why we offer an additional 2% discount for customers who come back and shop with us. We are thankful for your business and trust, and we look forward to providing you outstanding service. If you have questions about any of our products, or need help selecting the 4 inch filters, please feel free to contact us.

Popular 4 Inch Air Filters Sizes we carry in MERV 8, 11, & 13 ratings:

12x24x4 18x24x4 20x25x4
16x20x4 20x20x4 24x24x4
16x25x4 20x24x4