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-DFS20 Cap, Diffusion, Stainless Steel, pk 20 Price on request C-UNS10 Unions, 1/4 "–1/4 ", SS&1/4 " PTFE ferrs,pk10 Price on request U-FV009 Ferrule, 1/4in x 1/16in Graph Vesp, pk 10 Price on request