The WCS Wildlife Euthanasia Chamber, constructed of galvanized sheet metal is a top loading model which allows you to place the animal & trap into the chamber eliminating unnecessary contact. This unit operates on CO2 gas and comes complete with a 8" x 12" viewing window on top and a hose with fittings to connect to a regulator(not included). Measuring 14" x 14' x 38", this chamber is more than adequate to handle most large traps.