Measuring a custom baffle filter correctly is essential to ensure a good fit — especially kitchen overhead systems. We have created a simple, step-by-step guide to getting accurate measurements 👇
What You’ll Need
Tape measure or steel rule (in millimetres if possible)
Notepad or phone to record measurements
Existing filter (if available) or the filter housing / frame
Measure the Existing Filter (unless missing)
If you’re replacing a filter, measure the actual filter, not the housing:
| Measurement | How to Measure | Example |
|---|---|---|
| Width (W) | Left to right across the face of the filter | 495 mm |
| Height (H) | Top to bottom across the face | 595 mm |
| Depth (D) | Front to back (thickness) | 48 mm |
✅ Tip: Always measure to the nearest millimetre (mm) — do not round up to “nearest inch” unless specified.
⚠️ Filters are often slightly undersized (by ~3–5 mm) to allow easy insertion into the frame.
If the Old Filter Is Missing — Measure the Housing
If the filter is missing, measure the internal space of the filter holding frame (where the filter slides in):
| What to Measure | Description |
|---|---|
| Opening width & height | Inside-to-inside of the frame (the actual slot or recess where the filter sits) |
| Depth of slot | Distance from front lip to rear stop inside the frame |
Then subtract 3–5 mm from the width and height to allow for a good fit (so the filter can slide in easily but not rattle).
Dont hesitate to call the sales support team if you cannot be sure of ordering the exact product you require. Many times filters are damaged, missing or have been replaced with an incorrect filter in the past.
