Preventative Maintenance Kit for Model 6535 (30 cu. ft. Photostability Chamber) Includes (1) FIL-114 Filter Media, 25 PPI, (24) LGT-111 Fluorescent Lamps, 20 Watts, (8) LGT-124 High Output Lamps, 35 Watts, (1) Atomizer, Brass with Mesh Screen, and (4) VEL-104 1/2" Velcro Discs. Detailed Instructions Included.