MERV 1320x25x4 INBest Match4.8Aprilaire 213 — 20x25x4 MERV 13Aprilaire·20x25x4″·MERV 13Compatibility100%AllergiesAsthmaSmoke$49.9914,200 reviewsView
MERV 1120x25x4 INVerified Fit4.7Aprilaire 210 — 20x25x4 MERV 11Aprilaire·20x25x4″·MERV 11Compatibility100%Whole-homePet dander$42.997,800 reviewsView
MERV 1320x20x4 INVerified Fit4.8Aprilaire 313 — 20x20x4 MERV 13Aprilaire·20x20x4″·MERV 13Compatibility100%AllergiesSmoke$48.994,900 reviewsView
MERV 1316x28x6 INPremium Air4.8Aprilaire 413 — 16x28x6 MERV 13Aprilaire·16x28x6″·MERV 13Compatibility100%AllergiesSmokeWhole-home$64.996,100 reviewsView
MERV 1116x28x6 INVerified Fit4.7Aprilaire 410 — 16x28x6 MERV 11Aprilaire·16x28x6″·MERV 11Compatibility100%Whole-homePet dander$54.993,200 reviewsView