Ferrule, 1/4", PTFE, pk 20 Back Catalog number: C-FP020 Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended C-TO17100-10 CRS tubes (TO-17mix), 100ng,pk10 Price on request C-DL100 Cap, DiffLok, stainless steel, 1/4 , pk 100 Price on request C-DF010E Diffusion caps,alum,etched with serial numb,pk10 Price on request