Best Seller | DAYTON 166178 Companion Flange,Set of 2,18in,For 4C661 Tubeaxial Companion Flange, For Fan Diameter 18 in, For Fan Type Tubeaxial, Mounting Hole Diameter 3/8 in, Material Steel, Body Diameter 19 7/8 in, Bolt Circle Diameter 16 3/4 in, For Use With 4C661, 4TM82, Includes Predrilled Mounting Holes, Inside... ... more DAYTON 166178 Companion Flange,Set of 2,18in,For 4C661 Tubeaxial Companion Flange, For Fan Diameter 18 in, For Fan Type Tubeaxial, Mounting Hole Diameter 3/8 in, Material Steel, Body Diameter 19 7/8 in, Bolt Circle Diameter 16 3/4 in, For Use With 4C661, 4TM82, Includes Predrilled Mounting Holes, Inside... | | $183.99 go to store |