Whisper Grilles and Screws: A Spare Parts Buying Guide
By Duux | The Flow of Comfort | Published: 2026-10-13
Category: Buying Guides
Match the right Duux Whisper grille or fan blade to your exact model before you buy. A practical guide to model codes, fit checks, and when a spare part is worth it.
Quick answer
Buy the spare part that matches your fan's model code, not the one that looks closest. For a Whisper Flex Ultimate DXCF14, the Rear grille Whisper Flex Ultimate Black and the Whisper Flex Ultimate Black Fan Blade are the direct fits. For Whisper Flex 2 Smart models DXCF70, DXCF80, and DXCF88, use the Front Grille Whisper Flex 2 (Smart) Black. If your model code is not listed for a part, do not order it and hope.
Find your model code before you order anything
Every Duux Whisper spare part is tied to a model code, and the codes do not overlap as neatly as the product names suggest. The Whisper Flex Rear Grille Black fits DXCF04, DXCF10, DXCF12, and DXCF14. The Rear grille Whisper Flex Ultimate Black fits only DXCF14. The Front Grille Whisper Flex 2 (Smart) Black fits DXCF70, DXCF80, and DXCF88. Check the label on the base of your fan or the sticker inside the grille housing, write the code down, and match it against the part listing before you pay.
Grille or blade: which part actually failed
A cracked grille and a bent blade feel similar from across the room, but they need different parts and different fixes. Inspect the fan with the power off. If the cage bars are broken, deformed, or missing, you need a grille. If the fan vibrates, wobbles, or hums at low speed and the cage is intact, the blade is the more likely culprit. Buying a grille when the blade is out of balance will not fix the noise, and buying a blade when a cage bar is bent will not make the fan safe to run.
What the catalog does and does not tell you about mounting screws
Duux lists grilles and blades as individual replacement parts, but the supplied catalog records for these items do not include mounting screws, screw dimensions, or thread specifications. That is a real limitation, not an oversight you can work around by guessing. If your screws are lost or stripped, measure the old screw if you still have one, or contact Duux support with your model code before ordering hardware from a third party. Do not assume a screw that fits one Whisper model will fit another.
When a spare part is the right call and when it is not
A replacement grille or blade makes sense when the rest of the fan is working: the motor runs quietly, the base is stable, and the controls respond. It is a poor use of money if the fan also has electrical faults, a cracked housing, or a failed motor, because the new part will not address the underlying problem. If you are unsure which part is failing, start with the cheapest likely fix and test the fan before buying anything else.
Decision rules for buying Whisper spare parts
- Match the model code first: Find your fan's code on the base label or inside the grille housing. Compare it to the compatible model list on the part page. If your code is not listed, the part is not confirmed to fit. No code match, no order.
- Diagnose before you buy: Broken cage bars mean you need a grille. Vibration or wobble with an intact cage points to the blade. Address the actual failure, not the symptom you noticed first. One part, one problem.
- Treat missing screws as a support question: The catalog records for these grilles and blades do not list screw sizes or include mounting hardware. Measure an existing screw or ask Duux support for the specification for your model. Do not guess thread sizes.
- Weigh the part against the fan's condition: A grille or blade replacement is worth it when the motor, base, and controls are healthy. If the fan has electrical or structural faults, the spare part will not solve them. Fix the fan, not just the symptom.
Spare parts in this guide
- Rear grille Whisper Flex Ultimate Black: Rear grille for the Duux Whisper Flex Ultimate in black, suitable for model DXCF14, item number DXSP157. This is the direct rear grille replacement for Whisper Flex Ultimate DXCF14 owners, and the model code match is what makes it safe to order.
- Whisper Flex Ultimate Black Fan Blade: Replacement fan blade for the Whisper Flex Ultimate black fan, suitable for DXCF14, item number DXSP155. If your DXCF14 wobbles or vibrates but the grille is intact, this is the part to check before replacing the whole fan.
- Whisper Flex Rear Grille Black: Replacement rear grille for Whisper Flex models DXCF04, DXCF10, DXCF12, and DXCF14, SKU DXSP115. This is the broader-fit rear grille option, so it works across several Whisper Flex models rather than just the Ultimate.
- Front Grille Whisper Flex 2 (Smart) Black: Replacement front grille for Whisper Flex 2 (Smart) fans, fitting model types DXCF70, DXCF80, and DXCF88, SKU DXSP417. Whisper Flex 2 Smart owners need this front grille specifically, because the older Whisper Flex grilles do not cover these model codes.
Who these spare parts are for
Best for
- Whisper Flex Ultimate DXCF14 owners who need a rear grille or fan blade replacement
- Whisper Flex 2 Smart DXCF70, DXCF80, or DXCF88 owners with a damaged front grille
- Whisper Flex DXCF04, DXCF10, DXCF12, or DXCF14 owners who need a rear grille that fits several models
Not for
- Fans with electrical faults, cracked housings, or failed motors, where a grille or blade will not fix the underlying problem
- Owners who cannot confirm their model code, since an unverified part may not fit
- Anyone looking for a complete mounting screw kit, because these catalog records do not include screws or their specifications
