The Easy Way Replacement Wick is designed to keep Easy Way cattle oilers and pest-control systems applying solution properly and consistently. Available in multiple sizes to control solution flow, these pre-cut wicks are easy to replace and compatible with Easy Way oiler systems. The 5/16" wick is commonly used with Cattle Saver and Mineral Feeder units, while the 3/8" wick is commonly used with the 3' Walkway.