The Nyclave Impulse Heat Sealer is a compact, easy-to-use unit that quickly seals all types of heat sensitive instrument bags and sterilization tubing. This sealer forms a strong, reliable seal that is good for up to six months in storage. Cutter Sealer has a built-in cutter device that saves time by sealing and cutting bags all in one step. Both styles have a 115V option, and the classic sealer also has a 220V option.