A fluid filter system has a manifold having a fluid inlet with an inlet stop and a fluid outlet with an outlet stop and a cartridge seat. In one embodiment, an apparatus for supporting a web of polishing material includes a web of polishing media having a first portion disposed across a support surface of a platen assembly and a second portion wound on a first roll coupled to the platen assembly. The electronic system is adapted to accept or deny a transaction based on the comparison result generated by comparing the biometric data and the information obtained from the transaction token at the transaction location with information previously stored in one or more databases.