Water Panel Aprilaire #1200

#1200 Aprilaire Water Panel Replacement Aprilaire humidifier panel For Aprilaire Commercial Humidifier models 1120, 1130 and 1140. Measures 18"""" x 24"""" x 3"""" (nominal) . AirFilters.com This humidifier replacement panel is for Aprilaire Commercial Humidifier models 1120, 1130 and 1140. It measures 18 x 24 x 3 (nominal) . Replacing the panel is an important part of humidifier maintenance. Find yours today at AirFilters.com. We have a variety of Aprilaire replacement items in stock and ready to ship!