Single Entry Design A Convenient Single-Entry Panel Provides Adaptable Installation With Optional Right Or Left Hand Hinged Orientations Merv Filter Capable Fits Standard 1″ Thick And Up To 2″ Thick Filter For Rooms That Need Higher Merv Efficiency And Effectiveness Retrofit Flexibility Designed To Work With Current And Prior Series Ge Zoneline Vtacs (Az75, 85, 90, 91, 95); Along With Other Select Brands