Air Filters From Day & Night

For Day & Night furnaces with a 4-inch media cabinet, this page offers Tier1 compatible filters in the 19 x 20 x 4-1/4 size. Pick MERV 8, MERV 11 or MERV 13, each sold as a 2-pack. Confirm the size on your current filter before you order.

MERV options

Each step up the EPA's MERV scale means finer particle capture.

MERV 8: the standard option.
MERV 11: a step finer.
MERV 13: captures at least 50% of 0.3-1 micron and 85% of 1-3 micron particles, per the EPA.

We stock this size for Carrier, Bryant and Totaline too, and in our Payne air filters. Other sizes: see our 4-inch MERV 8 filters.

Common questions

What size filter does a Day & Night furnace use?

Filter size varies between Day & Night furnaces, so read the size on your current filter or check your furnace manual. This page carries 19 x 20 x 4-1/4.

Are these genuine Day & Night filters?

No, these are compatible replacements made by Tier1 rather than genuine Day & Night parts.

Tier1 brand replacement for Day & Night - 19 x 20 x 4-1/4 - MERV 11 (2-Pack)

$60.67

Tier1 brand replacement for Day & Night - 19 x 20 x 4-1/4 - MERV 13 (2-Pack)

$60.23

Tier1 brand replacement for Day & Night - 19 x 20 x 4-1/4 - MERV 8 (2-Pack)

$49.77