https://www.ebay.com/sch/i.html?_nkw=Allied+Molded+4+Diameter+Fans+Fixture+Supports+9374+Fr+Pack+Of+40+&_sacat=0&_dmd=2

Allied Molded 4' Diameter Fans & Fixture Supports 9374-Fr (Pack Of 40)

Regular price
$179.00
Sale price
$120.00

Allied Molded 4" Diameter Fans & Fixture Supports. Allied Moulded Products are great for safety. High quality materials. Well known for use when installing wiring.