Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"
Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"
Hero image 0 of Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75", 0 of 5
Filter King

Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"

Key item features

  • FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 16" x 20" x 4" - Actual Size: 15.5" x 19.5" x 3.75"
  • MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters
  • CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours.
  • FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.
Current price is $68.20
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  • Free shipping
  • Free 30-day returns
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Arrives by Sat, May 2
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Sold and shipped by Filter King LLC
4.5510835913312695 stars out of 5, based on 323 seller reviews(4.6)
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4.7 out of 5 stars
stars83 ratings83 reviews
How item rating is calculated
  1. 5 stars81% (67)
  2. 4 stars10% (8)
  3. 3 stars8% (7)
  4. 2 stars1% (1)
  5. 1 star0% (0)
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Showing 1-3 of 83 reviews

Jul 10, 2025
Richard M.
5 out of 5 stars review

Seller Verified Purchase

Air filters

Price: Reasonably priced filters. Shipping & delivery: Ultra fast, 2 days. FedEx, not USPS Order Accuracy: Perfect Quality: Made in the USA, very good. Communication: All steps well communicated. Reachable customer service; phone number posted on their website. This company stands as a model in all facets of their operation. Keep up the great work!

Review from filterking.com
Helpful?51ZOQLS1SLXE5207897992
Feb 25, 2026
Jason B.
5 out of 5 stars review

Seller Verified Purchase

Fast, cheap, good.

They arrived quickly, in good condition, and they were the correct filters. Very good price, compared to local Hardware stores.

Review from filterking.com
Helpful?51ZOQLS1SLXE5207897992
Mar 8, 2026
Michael E.
5 out of 5 stars review

Seller Verified Purchase

A breath of fresh air!

I noticed the difference in air quality immediately! 2 years worth of filter for only $92, tax included. A great value!

Review from filterking.com
Helpful?51ZOQLS1SLXE5207897992