Arlington RTSB405-10 Roof Top Conduit and Raceway Support Base, 5" W x 4" H, 10-Pack Raises conduit/raceway off roof deck, meets 2011 NEC for temperature adjustment for circular conduit Base Only: 5" W x 4" H Heavy-duty base sits on roof deck without need to attach base with fasteners to the roof surface Suitable for extreme roof conditions - protecting and elevating your conduit or raceway 100% recycled material - Roof topper supports are UV resistant, supports up to 2000-lbs Supports raise conduit or raceway off the roof surface to meet the requirements of 2011 NEC for temperature adjustment for circular conduit Base Only: 5" W x 4" H Made of 100-Percent recycled material, heavy-duty base sits on the roof deck with the need to attach the base to the roof surface Roof topper supports stand up to extreme roof conditions protecting and elevating your conduit or raceway UV resistant, supports up to 2000-lbs