Bel-art f42043-0000 polycarbonate vacuum chamber and plate, 0.2 cu. Ft. ideal for vacuum drying, degassing and teaching demonstrations, this vacuum chamber can withstand a full vacuum at room temperature. A one piece o-ring seals the clear polycarbonate top to white polycarbonate base plate and a polypropylene stopcock with teflon ptfe plug and tapered hose barb accepts tubing with 1/4″ (6mm) i.d.