THESE ARE 20 X 20 X 1″ PRE-FILTERS FOR YOUR POWDER BOOTHS.
•Self sealing design
•Progressive density media
•Durable steel internal support wire
•Individual panels •Excellent filter for high moisture applications
These are rated at Merv 11 and are tacky on 1 side.
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