AF923 Andreae High Efficiency Filter White w/Poly Backing 36" x 30'

AF 923 36" x 30"   High efficiency  AF  Filter

The Andreae HE Original Filter will bring a filtration efficiency near 100% while keeping the high loading capacity of the Andreae Original filter. The HE is made with 2 layers of heavy “kraft” paper, punched, pleated and glued together completed with a polyester layer on its back increasing its filtration efficiency