From the Manufacturer Arlington NM2020-100 Quick-Latch Pipe Hanger, One-Piece, Non-Metallic UV-Rated, Gray, EMT 1-Inch, 100-Pack Quick LATCH pipe hangers can be used in place anywhere you would use a traditional pipe hanger. It saves 25 seconds per installation, after hundreds of installations you will be glad you switched. Conduit snaps into place, locking automatically. It accommodates thin wall, RIGID Conduit, PVC conduit, or copper. It mounts horizontally or vertically. These are UV rated for outdoor application and corrosion resistant. Listed for use in environmental air handling spaces per 2005 NEC code requirement 300-22(c).