Snap-neck HPLC vials are compatible with either crimps or snap vial devices. You don’t need any special tools to remove the cap. Because seals are not as safe as crimps or threaded seals, 2ml snap HPLC vials are recommended for short-term sample storage and non-volatile samples. Rated 5 /5 based on 534 customer reviews. 2ml hplc vial 2ml vial