THESE ARE 20 X 20 X 1″ PRE-FILTERS FOR YOUR POWDER BOOTHS. THESE FILTERS ARE 20 X 20 X 1″ CUT PADS . THESE FILTERS HELP PROTECT YOUR BAG FILTERS.
These are rated at Merv 8.
Merv rating is the ability of a filter to stop fine particulates from passing thru. The higher the Merv rating the better the filter. Generally in the powder coating industry you will have Merv 4,6,8 and 11.
MADE IN THE USA