Acousti Products - Anti-Vibration Products: Ultra Soft Fan Mounts
4) Rubber Anti Vibration Isolator Mounts with Male Threaded Studs Rubber Height 1/2" x 1" Rubber Diameter - Studs 1/4-20 x 1/2" Length. for Garage, Air Compressors, Water Pumps, Fans, Motors.: Amazon.com:
Amazon.com: Herco 1003 Round Double Stud Black Rubber Vibration Mount (1" x 3/4") - 2 pcs : Industrial & Scientific