Square Louvre Diffuser

Model: MS

Square Louvre Diffuser

Square Louvre Diffuser

Standard Size : 594 X 594 mm or 1194 X 594 mm for lay-on the Tee bar
Standard Nominal Neck Size : Dia150, 200, 250, 300, 350mm
Recommended Air Flow Range (cmh):
Neck Size With Adaptor (cmh) With Plenum (cmh)
150 114 – 190 250 – 320
200 170 – 330 452 – 565
250 265 – 530 706 – 883
300 381 – 763 1017 – 1272
350 519 – 1039 -

Description        :

Connols-Air MS Series square and rectangular louvre diffuser is a multi-pattern diffuser and, as such, provides 1-way, 2-way, 2-way corner, 3-way and 4-way horizontal air distribution. It is designed for installation with and with ceiling height of 2.5 m to 3.5 m. Without ceiling, this diffuser may be installed at higher level to 4.5 m; due to lack of coanda effect, the primary air drop quickly and does not cover sufficient throw. Care must be taken in the diffuser layout to ensure that its throw is sufficient to cover the required space.

The diffuser is made of high quality extruded aluminum and designed to ensure blade rigidity and minimize airflow generated noised. Centre core of the diffuser may be easily removed for cleaning without special tool.

As a standard diffuser is supplied with round inlet adaptor for connection to flexible duct the adaptor inlet air velocity is limited to 2.5m/s. Diffuser may be supplied with acoustic plenum for better noise control; with acoustic plenum air distribution is uniform and air inlet velocity is limited to 5 m/s.

The diffuser is available in standard powder coated baked white enamel RAL 9010. Other finishes are available upon request.


  • Easily removable centre core for cleaning
  • Many airflow patterns to suit different room configuration
  • Available with engineer plenum
  • Uniform air distribution
  • Low generated sound level
  • Robust construction


Submittal Sheet