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Dovetail-Chain Shower Threshold Dam Segment
A rigid 150 mm long, 30 mm wide, 14 mm tall shower floor dam segment. It sits on the shower floor in front of a frameless or sliding door and stops water from creeping out once the glass sweep has worn. Segments lock end-to-end with an 8 mm dovetail, so you can chain them to any door width and trim the last one with a saw. Two 3 mm silicone grooves underneath, plus a gentle ramp on the shower side, seal it down without drilling.
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