The Davey ChloroMatic ESR300 takes the Davey ChloroMatic ESR300 cell M0759 as its cell; Australian sellers list it from A$355.00 as of 1 November 2026. Fitment confirmed against the manufacturer's compatibility list.
Your salt chlorinator
Davey ChloroMatic ESR300
Salt chlorinator
Confirmed against Davey's listConfirmed against Davey's own compatibility list
Not yours? Change
Takes the M0759 cell
ChloroMatic ESR300 cell M0759 · check the code on your old part before ordering.
Your salt chlorinator
Salt chlorinator
Confirmed against Davey's listConfirmed against Davey's own compatibility list
Takes the M0759
Cell · check the code on your old part.
Other Davey salt chlorinators and their cells
The M0759 fits the ChloroMatic ESR300 only. These Davey models take a different cell:
GenuineGenuine Davey
$579.00
Pool & Spa Warehouse · 1 NovLowest genuine · Pool & Spa Warehouse · checked 1 Nov
CompatibleCompatible option
$355.00
Pool Shop · 1 NovPool Shop · checked 1 Nov
Check sellerCheck seller details
Genuine: made by Davey. Compatible: another brand.Genuine is made by Davey. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $355.00
Pool Shop. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Opens Pool Shop in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it when it no longer responds to extra salt or Winter Mode, Davey says; a cell drawing less than 80% of its maximum current has failed.
After replacing: No reset needed. Turn the unit back on once the pump is running and the cell is full of water.
How to change the cell in your Davey ChloroMatic ESR300
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Turn the chlorinator off, turn the pump off and close any valves either side of the cell.
- 2Remove all the leads connected to the cell head assembly.
- 3Unscrew the cell by turning the head assembly as Davey's manual describes (clockwise) and withdraw it from the cell housing.
- 4Fit the new ChloroMatic cell for your model into the housing, screw it home and reconnect the leads to the head assembly.
- 5Open the valves, start the pump and check for leaks, then turn the chlorinator back on.
Every number this part goes by
- Retail name:
- M0759
Sellers list any of these; they are the same part.
About your Davey ChloroMatic ESR300
Davey salt chlorinator — ChloroMatic ESR (standard). Its cell is the ChloroMatic ESR300 cell M0759, part M0759.
Where the model number is: The model and output are on the label on the power supply or control box near the pump. Switch the chlorinator and pump off at the power point before you touch the cell.
Fits this Davey model
Davey1 model
Common questions
- Which cell fits the Davey ChloroMatic ESR300?
- The Davey ChloroMatic ESR300 takes the Davey ChloroMatic ESR300 cell M0759.
- Where can I buy the M0759 in Australia?
- We track 2 Australian sellers for the M0759; the lowest listed price when we last checked was A$355.00 at Pool Shop. Prices are re-checked daily and dated on this page.
- How do I fit the M0759 in a Davey ChloroMatic ESR300?
- 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A worn cell makes too little chlorine, so the water turns green or cloudy, and turning the output up only wears it faster.
- Is there anything to reset afterwards?
- No reset needed. Turn the unit back on once the pump is running and the cell is full of water.
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