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-CHK10 Check-standard, 90 ng/µL (nominal), Tenax TA,pk10 Price on request C-DL010-HF Cap, High-flow DiffLok, 1/4", Stainless Steel, pk 10 Price on request U-FV007 Ferrule, 1/16in x 0.8mm, vespel, pk 10 Price on request