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 U-FV008 Ferrule, 1/4in x 1/8in Graph Vesp, pk 10 Price on request C-DL100-HF Cap, High-flow DiffLok, 1/4", Stainless Steel, pk 100 Price on request U-FV009 Ferrule, 1/4in x 1/16in Graph Vesp, pk 10 Price on request