These transparent plastic nose cones are low luminescent and low fluorescent. They are for use with the XGI-8 Anesthesia System and 2-port rat anesthesia system manifold. This set comes with 5 stoppers, 2 rat dividers, and 1 installation guide. The XGI-8 Gas Anesthesia System is designed to work with IVIS® imaging systems and allows researchers to use real-time in vivo imaging to monitor and record cellular and genetic activity within a living organism. The gas anesthesia module successfully integrates efficient gas delivery into a single system. The gas anesthesia system delivers isoflurane gas to a 5-port anesthesia manifold housed in the IVIS® system imaging chamber. The manifold safely anesthetizes up to 5 adult mice or 2 rats simultaneously. The manifold also provides waste gas scavenging ports to help prevent gas from entering the surrounding work environment. Opening the lid to the induction chamber automatically triggers a built-in vacuum system that helps ventilate waste gas away from researchers and into disposable isoflurane-absorbing charcoal filters, or into a house air exhaust system. This system allows researchers independent control and monitoring of isoflurane gas to the induction chamber and to the subjects in the imaging