Diffusers & Grilles
Ceiling and wall air distribution — jet, slot, swirl and round or square ceiling diffusers, grilles and air disc valves.
Specifications
| Parameter | Value |
|---|---|
| Baseboard grille sizes | 16 × 8, 26 × 8 (plastic) |
Values as published in the 2026 product catalogue. Ask us for the model-level submittal sheet before specifying.
Features
- ✓Jet, slot and swirl diffusers
- ✓Round and square ceiling diffusers
- ✓Linear bar grille
- ✓Single and double deflection grilles
- ✓Return grilles
- ✓Plastic baseboard grilles, 16 × 8 and 26 × 8
- ✓Air disc valves
Overview
Ceiling and wall air distribution: jet, slot, swirl, round and square ceiling diffusers, air disc valves, and linear bar, single and double deflection and return grilles, plus plastic baseboard grilles in 16 × 8 and 26 × 8. This is the visible end of the duct system, and it is usually scheduled last — which is when an incomplete outlet schedule costs the most time.
The family is broad rather than deep: selection is by throw pattern, mounting type and neck size for the diffusers, and by face size and deflection arrangement for the grilles. Only the plastic baseboard grille sizes are published at family level. Everything else, including available widths and heights, is a model-level question, so a schedule with the airflow, size and finish of each outlet is the fastest way to a firm quotation.
Where it is used
- Office, retail and light-commercial ceiling air distribution
- Residential supply and return registers and baseboard grilles
- Directional supply in tall spaces where a jet or swirl pattern is needed
- Linear runs where a continuous grille look is wanted
- Outlets that also serve as the balancing point, using air disc valves
Selection & installation notes
- 01
Start from the airflow and the throw each space needs, then pick the pattern: jet and swirl for long throws and high spaces, slot for linear runs, round or square ceiling diffusers for even distribution, deflection and return grilles for wall locations.
- 02
Baseboard grilles are listed in plastic at 16 × 8 and 26 × 8. Sizes for the diffusers, linear bar, deflection and return grilles are model-specific — confirm them on the submittal sheet.
- 03
Neck size, face size, border type and fixing method all vary by item. A schedule giving size, airflow and finish per outlet avoids a second round of questions. Where an outlet is exposed to view, agree the finish and border at quotation stage.
Common questions
Can you work from a diffuser schedule?
Yes. Send the schedule with size, airflow, pattern and finish per outlet and each line is matched to the range. Where you only have the airflow, send that and the factory will confirm what fits.
What sizes are available?
Only the plastic baseboard grilles are published at family level — 16 × 8 and 26 × 8. Sizes for the diffusers, linear bar, deflection and return grilles are model-specific; confirm them on the submittal sheet.
Do you build custom sizes or finishes?
Customisation is handled per item on request. Tell us the size, pattern and finish and the factory will confirm what can be produced.
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