Compatible with a Wide Range: These Aprilaire 35 water panel filters fit models 300, 350, 360, 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768, Honeywell HC26P, HC26, and Lennox Healthy Climate WB217, WP218 series humidifiers. Efficient Honeycomb Design: The unique honeycomb structure of the Aprilaire 35 water panel ensures maximum water absorption and effective moisture output. It also traps impurities like mineral deposits, enhancing the air quality in your home. Easy Installation: for Aprilaire 35 water panel is designed for hassle-free installation, taking only minutes to replace. The filter's symmetrical design means there's no need to worry about which side faces out. Colour:White Material:Wood pulp paper Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 3 * HC26P humidifier filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.