This HR50030S cartridge heater has a 304 Stainless Steel sheath and has these specifications: 0.5" OD 3" Insertion length 3" OAL 120 volts 300watts 10" FG lead. This heater can usually ship the same day, if ordered by 1:30 CST. Out of stock, epoxy potting, and NPT fitting heaters can ship in two business days.