Rigid Bag Filters

Our Rigid Bag Filter utilizes a glass fibre filter media offering very high dust holding capacity.

Product Overview

Rigid Bag Filter, also known as a Compact Cassette Filter, or Minipleat Compact Filter, in plastic frame with 292mm depth.  This high efficiency Mini-Pleat compact filter is made up of micro-fine glass fibre media, and available in 20mm and 25mm headers and F7 and F9 grades.

Filters are absolutely metal free and so are incinerable and environmentally friendly.

01747 853670sales@southernfilters.co.uk

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These are designed for supply, exhaust and recirculation in HVAC installations where the highest degree of air cleanliness is required. The compact design, larger surface area and low initial resistance make it an ideal alternative to ordinary Bag filters & Panel filters of similar efficiencies.  They have a low pressure drop and high dust holding capacity.


Available in F7 and F9 Grades, full, three-quarter and half sizes.

EN 779: 2012 Model Arrestance (%) Size (mm) Rated Airflow (CMH) Initial Resistance (Pa) Final Resistance (Pa)
@2.54 m/s @3.17 m/s @2.54 m/s @3.17 m/s
F9 RB9.00 99.9 592 x 592 x 292 3400 4250 135 175 635
F9 RB9.75 99.9 490 x 592 x 292 2750 3450 135 175 635
F9 RB9.50 99.9 287 x 592 x 292 1700 2125 135 175 635
F7 RB7.00 99 592 x 592 x 292 3400 4250 80 105 635
F7 RB9.75 99 490 x 592 x 292 2750 3450 80 105 635
F7 RB9.50 99 287 x 592 x 292 1700 2125 80 105 635

These filters are made up of water resistant micro-fine glass fibre filter media, closely pleated and separated by continuous thermo-plastic bead separators. This design accommodates a very large quantity of filter media which offers a longer service life and low pressure drop. The Mini-Pleated media packs are arranged in perfect V design and sealed to the enclosing frame.


We provide you with all your air filtration needs – what you want, when and where you need it.

Friendly and flexible, our team is focused on manufacturing and supplying a complete range of air filters for the UK.  Our practical solutions and reliable products ensure you get the right air filter, at the right time, in the right place, and at a good price.

Southern Filters (Dorset) Ltd
22j Wincombe Business Park
United Kingdom