Leak test apparatus This apparatus is an ideal instrument to check sealing integrity of Blister Packs; Strip Packs; Sachet and Pouch Packs etc. It is also used for checking leaks from Capped Bottles; Induction Sealed Containers; Sealed Or Crimped Tubes etc. The instrument is equipped with long lasting vacuum pump, which gives high level of vacuum (up to 550 Hg) in shortest possible time. Die pressed polycarbonate vacuum desiccator sustains vacuum for long time.