This natural rubber 4 hole stopper from Anvil Brewing has four holes that accommodate the Anvil Cooling Coil, the Anvil Thermowell and an airlock. It has one 9.5 mm hole, two 5.7 mm holes, and an 8.5 mm hole. It works great as a replacement in the Anvil Cooling System if yours goes missing or becomes damaged.
For shipping orders, this product is drop shipped directly from the manufacturer. Please allow 1-3 weeks for delivery. For pickup orders, we carry a supply of these in all our stores but will contact you if we are out at the time of your order.