Inquiry (采购产品): Low temp natural gas cartridge I am looking for a low temp filter cartridge for scrubbing sulfur from natural gas for fuel cells. The down stream sulfur content must not exceed ~3-5 ppm. Do you have anything with zink oxide? **** Hidden Message ***** Ben Marble 84104 Company: MSRI E-mail: bmarble@msrihome.com **** Hidden Message ***** bmarble@msrihome.com