Andreae Filter 20″ x 20″ High Efficiency Exhaust – 28 per box AF223
- DESCRIPTION
The HE Original Andreae Filter 20″ x 20″ will bring a filtration efficiency near 100%. 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.
Size: 20″ x 20″ – 28 per box
Looking for a different size? Additional sizes can be found at the links below:
Andreae Cardboard Filter 20″ x 25″ High Efficiency Exhaust – 24 per box AF423