This kit includes three 5 micron filter elements, three 20 micron filter elements, one charcoal filter element, two bags of SC-1 storage chemical. This kit is compatible with the Ventura 150 MPC, Ventura 200T MPC, Newport 400 MKII, Newport 700 MKII, Newport 1000 MKII, and older units such as the Spectra 180C, 200C, 380C, Santa Cruz, and Gulfstream MPC.