Reservior Liner Aprilaire #4093

#4093 Aprilaire Reservior Liner For use with Aprilaire models 445, 445A & 448 This is the plastic insert which fits in the reservoir at the base of your Humidifier and makes maintenance fast and easy AirFilters.com This Aprilaire reservoir liner is for use with Aprilaire models 445, 445A & 448. This is the plastic insert which fits in the reservoir at the base of your Humidifier and makes maintenance fast and easy.