CF1026Quick installation without cutting any ceiling tiles the CMA-455 is designed to replace one 2" x 2" ceiling tile or sit above the suspended ceiling and is secured to the structure above with four tie wires. Threaded hole accepts 1 1/2"" NPT extension column. Comes with 10 ft. safety cable, 20 ft. strand wire, two outlet knockouts, four turnbuckles, wood eye bolts and concrete anchors. Chief warrants its products (excluding electric, gas cylinder, and one-way bearing mechanisms) to be free of defects in material and workmanship for 10 years. PLEASE NOTE: This item cannot be shipped to Puerto Rico