The Purafil 16 oz refill granulate for SWG 100 Biogas analyzer. Only for analyzers with the upgraded filter cartridge (flow monitoring). Also, for NOVA plus analyzer with external Purafil filter cartridge (CO sensor protection). — The Purafil 16 oz refill granulate for SWG 100 Biogas analyzer. Only for analyzers with the upgraded filter cartridge (flow monitoring). Also, for NOVA plus analyzer with external Purafil filter cartridge (CO sensor protection).
