Application: ventilation units, filter class: F7, replacement filter cassettes for the supply air of the LWZ 304/404 made of shatter-proof polyester fibers with partially progressive structure, thermally bonded, temperature-resistant up to 100 degrees C, Z-folded in a stable frame made of moisture-resistant cardboard with a pull tab on the front. Replacement filter cassettes for the supply air of the 304/404/504 series made of shatter-proof polyester fibers with a partially progressive structure, thermally bonded, temperature-resistant up to 100 degrees C, Z-folded with side bonding with pull tab and U-shaped reinforcement of the front sides.Replacement filter cassettes for the supply air of the 304/404/504 series made of shatter-proof polyester fibers with a partially progressive structure, thermally bonded, temperature-resistant up to 100 degrees C, Z-folded with side bonding with pull tab and U-shaped reinforcement of the front sides.
