Useful in HPLC, these vials caps are compatible with most Aijiren, Beckman, CTC, Gilson, Shimadzu, Thermo, Varian & Waters autosamplers including Alliance & Acquity. 9509C-WCV-AQ 100/pack Vials, 2ml Snap/Crimp Top clear, with write on patch in clear packaging. 9509C-WAV-AQ 100/pack Vials, 2ml Snap/Crimp Top amber, with write on patch in clear