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Cathodic Protection Test Stations
Tracer Wire Access Boxes
Manhole Covers & Frames
Marker Posts
Sewer Cleanout Caps
Sidewalk Grates & Frames
Valve Boxes & Lids
Water Meter Boxes & Lids
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CP Test Services – VALVCO sewer cleanout caps are usually is 4” in diameter and has a tight-fitting steel or plastic cap over it.