Constructed of heavy-duty galvanized steel case, the outer frame gives maximum rigidity as well as greater fire-resistance (whilst the frame itself is totally fire-proof, the fire-resistance properties of the pleated filter material are the same as in a regular panel filter – all filters being inherently less fire- resistant once soiled).

The pleated inners are available in a range of efficiencies from EU4 to EU8, and in varying

densities for different rates of airflow. There is also the optional extra of a heavy-duty wire ‘W’ clips or welded mesh facing for extra security.

Available in a wide range of standard sizes. Custom sizes to order.