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CSB 15 & 25 (CSB-F / CSB-P) Barrel Slot Diffusers

    • Product Details


      The Waterloo CSB 15 and 25 High Induction Barrel Slot Diffusers are part of the comprehensive range of slot diffusers available from Waterloo. An attractive and efficient design means that the CSB range is ideally suited to a huge variety of applications. Close pattern control gives the CSB its highly adjustable air distribution characteristics which can be achieved over much shorter runs than have previously been achievable with other designs.

      Constructed from extruded aluminium and ABS FR, the CSB range is designed to integrate seamlessly into any installation. In ceiling, sidewall and bulkhead applications, the CSB 15 and 25 will provide horizontal or vertical projection, and they are suitable for both supply and exhaust ventilation.

      Product Description

      • CSB 15/25-F Standard flange for general purpose
      • CSB 15/25-PNarrow flange for flush / recess mounting
      • ENDSEnd caps
      • PBHLBPlenum box to suit, 1 - 4 duct connections
      • PHBPlenum hanging bracket
      • DHBDummy section hanging bracket


      • One to four slot
      • High induction characteristics
      • Mitred corners available
      • Fully adjustable close control air pattern
      • Consistent facia appearance
      • Can be fitted in continuous runs
      • Full length plenum flow distribution baffle included
      • Standard single lengths up to 1500 mm

      Standard Finishes

      • PPM9010 Matt White
      • PPG9010 Gloss White
      • PPM9006 Matt Silver
      • Black or white barrels (CSB 15 only)
      • PPM - Polyester Powder Matt - 20% gloss
      • PPG - Polyester Powder Gloss - 80% gloss
      • Other colours available on request

      Diffuser weights including plenum

      • CSB 15-F/P-S1 - 5kg/m
      • CSB 15-F/P-S2 - 7kg/m
      • CSB 15-F/P-S3 - 9kg/m
      • CSB 15-F/P-S4 - 12kg/m
      • CSB 25-F/P-S1 - 5kg/m
      • CSB 25-F/P-S2 - 7kg/m
      • CSB 25-F/P-S3 - 9kg/m
      • CSB 25-F/P-S4 - 12kg/m


      Product Specification

      Related links

      PBHLB Plenum Box

      Installation and Maintenance Instructions for CSB

      Plenum Insulation Thermal & Acoustic specification

      Waterloo Mill Finish


      For more information please use our contact form;

      Call our Sales and Customer Service Hot Line:

      01622 711511



    • Product Images

      CSB 15



      CSB 25


    • Product Model Data