Ketchum Individual Digit Number or Letter 201 Please Specify Group_Express 5 HS AspirEase III aids in the AspirEase III aids in the temporary relief of pain and inflammation associated with arthritis and soft tissue pain in horses floater or drain plug de icer Can be converted from a floating to a sinking de icer by simply removing the cover and the float and turning the de icer upside down to rest on the bottom of the tank Sturdy feet support the unit off the tank bottom when operating as a sinking de icer Durable aluminum base Keeps entire tank ice free without overheating the water Multiple thermostat control Large 8mm (5 16") size has chisel point pins for an Industry Leading 'easy to read' tattoo 8mm (5 16") size has chisel point pins for an Industry