2-1/2" to 4-1/2" turn-key clamp. Band & housing and screw are 316 stainless steel. Band is 1/2" wide. Screw is 5/16" hex head. No tools are required. Remove the reusable plastic screw cap for a tamper-resistant connection.
1-7/8 Lenox Hole Saw
1/4 Black Street Elbow
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Twin Floodlight Dusk to Dawn