(NOTE: Also try the Q Max - slightly smaller - near identical specifications but with built in speed controller ) The ISO-Max 250 is a 600mm long silencer fitted with a Max-Fan 250 inside.

• This is a VERY quiet high output fan option!
• 250mm Flanges fitted at each end.
• Would suit Carbon filters and high flow systems.
• Genuine airflow of 480 Litres per Second (480LPS) measured using international standards (beware the claims of cheap fans flow rates)
• It does not have a speed control - the Q-max fans do. It is NOT NOT NOT recommended by CAN FANS to put a basic speed control on this fan. There are speed controls available which do work - please ask for details.

See the quality of CAN Max fans here http://youtu.be/cFS9kB_J-CA