Excellent 
Fast Clamps
Use a Fast Clamp for a professional fit between fans, filters and silencers. Fast Clamps are not suitable for clamping to ducting - you're better off using a Quick Release Duct Clip for this job. However for joining a fan directly to a carbon filter or silencer using a Fast Clamp is your best option. All our Fast Clamps feature neoprene anti-vibration padding for a snug, no-noise fit.
Questions & Answers
Have a Question?
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Which one should I buy when I have carbon filter 5 inch (125mm) and fan 5 inch too. Should I buy 5 inch or 6 inch?
With Fast Clamps we recommend getting the exact size for the fan or filter you are using, as they are built to a exact size. So you would require a 5" Fast Clamp.