Preventative Maintenance Kit for Model 7545-3 (230V-50Hz Photostability Chamber) Includes (1) FIL-114 Filter Media, 25 PPI, with Reinforced Backing, (1) HUM-125 Anti-Microbial Puck, (4) VEL-104 1/2" Velcro Discs and (14) LGT-139 VIS, Cool White Lamps. Detailed Instructions Included.