Capillary abu ne mai mahimmanci a cikin HPLC, wanda ke taka muhimmiyar rawa wajen haɗa kayan aikin kayan aiki, da ginshiƙan chromatographic. Chromasir®ƙungiyar ta ƙirƙira capillaries guda uku da kayan aiki masu alaƙa, suna yin capillaries zuwa uku (Traline series, Ribend series and Supline series) ta hanyoyi daban-daban, kuma suna samun haƙƙin mallaka da yawa. SGS an duba jerin capillary, yana tabbatar da cikakken kayan aikin capillary. Chromasir capillary®ya dace da fiye da 95% HPLC.