Yearly Maintenance Kit, Teflon filter The kit includes a replacement CPU Fan, Teflon particulate filter, dust filter, replacement screws for instrument cover panels, Ball-Point Hex L-Keys, and Anti-Static Wrist Strap This maintenance kit is compatible with the following analyzers: G2103, G2205, G2307, G2108, G2114, G2509, PI2114, SI2205, SI2103, and SI2108 *Maintenance kit is free as part of the service plan; full price will be applied when purchased without a service plan