Pad and Frame Air Filter (1 Frame and 6 Pads) - 21 1/2" x 23 3/8" x 1"Includes one Frame and PACK of 6 pads The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts. The permanent frame is constructed of space age plastics that are resistant to corrosion, oxidation and deterioration. Filtering inserts are anti microbial and are more efficient in capturing particles, such as dust, ragweed, pollen, etc., from the air stream, than standard fiberglass filters purchased at retail

To find the size the old unit should have sizing information printed on it

The SpeedLight䋢 Jr

In general

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

the greater it's resistance to airflow

we even have the odd sizes

Simply cut a hole

the more efficient a filter is at removing particles

some just refer to them as electrostatic filters

Filtering inserts are shipped in an easily stored packet

the A+2000 uses no foam that may clog