Filter, carbon, 30mm × 30mm,pk 4 Back Catalog number: R-FLTR4 Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended C-HSPKIT-04 HiSorb Starter Kit (DVB/CWR/PDMS, short, inert) Price on request C-CF100-XZ Long-term stor cap,brass,6mm&PTFE ferr,pk100 Price on request SERAAA-5167 Split filter tube,glass,4 1/2 ",pack with charcoal Price on request