Preventative Maintenance Kit for Model 6545-3 (230V-50Hz Photostability Chamber) Includes (1) FIL-114 Filter Media, 25 PPI, with Reinforced Backing, (6) LGT-138 UVA Lamps, (1) HUM-120 Copper Mesh Antimicrobial Rod, and (4) VEL-104 1/2" Velcro Discs. Detailed Instructions Included.