Carlon PVC non-metallic conduit clamps can be used with Schedule 40 and Schedule 80 rigid non-metallic conduit (RNC). Clamps allow conduit to expand and contract eliminating the temperature-related bowing and flexing common with conduit. Unlike metallic systems,non-metallic clamps are lighter, can be installed in less time and are easily fabricated on the job. Clamps are nonconductive assuring a safe system. Resistant to sunlight and listed for exposed or outdoor usage, Carlon non-metallic PVC conduit clamps are durable and will not rust or corrode.