FitMatch

The Brivis AD20 takes the Brivis pads and mesh set 81000394 (4 x 753 x 430 x 75 mm) as its pad kit; Australian sellers list it from A$327.00 as of 1 November 2026. Fitment confirmed against the manufacturer's compatibility list.

Your evaporative cooler

Evaporative cooler

Confirmed against Brivis's list

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81000394

Takes the 81000394

Pad kit · check the code on your old part.

Other Brivis evaporative coolers that take the 81000394

Genuine

$327.00

HVAC Shop · 1 Nov

Compatible

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Genuine: made by Brivis. Compatible: another brand.

Lowest price · $327.00

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HVAC ShopGenuine · checked 1 Nov$327.00Open
Open cheapest seller · $327.00

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How long it lasts

Replace it when the pad material has holes or has broken down and no longer soaks up water, Brivis says; it lists pads as a consumable to check from the fifth year at its two-yearly service.

After replacing: No pad reminder to reset. After new pads are fitted, the cooler runs a Pre-Wet to soak them before the fan starts; a mild smell from new pads is normal and clears quickly, Brivis says.

How to change the pad kit in your Brivis AD20

Watch the guide or follow the steps.

No clear video for this part yet. The steps cover it.

  1. 1Brivis says its coolers must be maintained only by an authorised person, and recommends an authorised Brivis service technician: book one through Rinnai's Brivis service line. Before any work, switch the cooler off at the wall control and at its power isolating switch.
  2. 2The cooler must have safe and reasonable access, Brivis says; some installations need two service people. Do not go onto the roof without safe access.
  3. 3Check the old pads: Brivis says pads deteriorate over time and lose their ability to soak up water, so replace them when the material has holes or has broken down.
  4. 4Fit the new pad set in place of the old pads, then clean and flush the pads with water.
  5. 5With the pads in position, switch the isolating switch back on and run the cooler. Check the pump runs and the pads wet evenly; a mild smell from new pads is normal and clears quickly.
Every number this part goes by
Retail name:
81000394

Sellers list any of these; they are the same part.

About your AD20

Brivis evaporative cooler — AD. Its pad kit is the pads and mesh set 81000394 (4 x 753 x 430 x 75 mm), part 81000394.

Where the model number is: The model is on the label inside the cooler or on its control box, and in the manual. Don't go on the roof to look: the manual or the installer's paperwork usually has it.

Fits these 5 Brivis models
Common questions
Which pad kit fits the Brivis AD20?
The Brivis AD20 takes the Brivis pads and mesh set 81000394 (4 x 753 x 430 x 75 mm).
Where can I buy the 81000394 in Australia?
We track 1 Australian seller for the 81000394; the lowest listed price when we last checked was A$327.00 at HVAC Shop. Prices are re-checked daily and dated on this page.
How do I fit the 81000394 in a Brivis AD20?
No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
What happens if I don't change it?
Clogged pads pass less air and water, so the cooler blows warmer air, and old pads can smell musty.
How do I reset the reminder?
No pad reminder to reset. After new pads are fitted, the cooler runs a Pre-Wet to soak them before the fan starts; a mild smell from new pads is normal and clears quickly, Brivis says.

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