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125mm (5-inch) Stainless steel worm-drive clamps are the standard in connecting ducts to fans and filters. Primarily used in the connection between fans, carbon filters and ducting used in ventilation systems for hydroponic grow rooms.
Eliminates the use of tape that loosens and wears away over time.
To use - simply loosen the clamp with a screwdriver or 1/4 driver slide the clamp over the ducting, position correctly and tighten the screw firmly in a clockwise direction until fixed in place.
This 125mm clamp has an adjustable range of 118mm-140mm.
Also available in 100mm, 150mm & 200mm