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Product details:
A Stainless steel 100mm (4-inch) worm-drive ducting clamps which are the standard in connecting ducts to fans and filters for ventilation systems that are used in hydroponic grow rooms.
Eliminates the use of tape that loosens and wears away over time. Although after fastening we do recommend using mylar tape over the connection for a better seal
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.
Also available in 125mm, 150mm & 200mm
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