Approved for use with ceiling fans up to 35 lbs and luminaries up to 50 lbs. Concrete tight. All molded connectors have 360° locking tabs that exceed CSA and UL requirements for pull-out. Molded connectors are also approved for use with scepter rigid PVC conduit. Manufactured from high impact PVC. Non-metallic / nonconducting / noncorroding. Threaded brass inserts.