1000 Pieces of 20u chemical duty paper that fit exclusively in our Hochstrom Filters. These circular papers have a 142mm diameter (5.6 inch). Made in USA. No questionable composition, and no import junk. Straight up, best papers you’ll ever use.



Our other Hochstrom Filter™ stages:

Hochstrom Stage 2 Paper

Hochstrom Stage 3 Paper

Hochstrom Paper Package