Pool Chlorinator Cost: Whole-Unit Prices by Output and Size

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How much is a pool chlorinator? A standard salt water chlorinator costs $1,585.88–$3,308.78 as a complete unit at three Australian retailers on 20 October 2026: 25 g/h from $1,585.88, 35 g/h from $1,850.37 and 40–45 g/h $2,999.99–$3,308.78. Units with built-in pH dosing run to $5,508.87. Size it to the hot-climate rating, not the headline litres.

The short answer

$1,585.88–$3,308.78 for a standard whole chlorinator across 22 listings at three Australian retailers, read 20 October 2026, retailer-published. Fitting is extra if you pay someone.
Output sets the price band: 25 g/h units $1,585.88–$2,689, 35 g/h $1,850.37–$2,908.30, 40–45 g/h $2,999.99–$3,308.78. The cheapest 25 g/h unit costs less than either 18 g/h listing.
The hot-climate rating is 50–80% of the cooler one for the same unit on the makers’ figures: one 25 g/h unit is rated 96,000 L temperate and 50,000 L tropical.
One size up costs $264–$397 within the same range at the same shop, for example $1,585.88 for 25 g/h against $1,850.37 for 35 g/h.
The same unit costs 13% more at another shop ($2,379.34 against $2,689), and that shop prints the smaller model’s pool rating on it.

Whole-unit salt chlorinator prices by rated chlorine output, against the pool volume makers rate each output for (47 listings at three Australian retailers, read 20 October 2026, retailer-published; ratings as printed on the listings)
Chlorinator type and output	Listings read	Retailer-published price range	Rated pool volume, cooler climate	Rated pool volume, hot climate	Pool it suits
18 g/h, standard salt	2	$2,247.08–$2,290.39	50,000 L	40,000 L	Up to about 40,000 L in a hot climate; but a 25 g/h unit is listed for less
25 g/h, standard salt	9	$1,585.88–$2,689.00	80,000–96,000 L	40,000–60,000 L	About 40,000–60,000 L in a hot climate; 80,000–96,000 L in a cooler one
30 g/h, standard salt	2	$2,511.59–$2,679.00	120,000 L	75,000 L	About 75,000 L hot; 120,000 L cooler
35 g/h, standard salt	5	$1,850.37–$2,908.30	120,000–130,000 L	75,000–80,000 L	About 75,000–80,000 L hot; 120,000–130,000 L cooler
40–45 g/h, standard salt	4	$2,999.99–$3,308.78	160,000–170,000 L	100,000–105,000 L	About 100,000–105,000 L hot; 160,000–170,000 L cooler
Low-salt or magnesium-mineral, 15–35 g/h	7	$1,399.99–$4,799.00	30,000–100,000 L (mostly single figures)	30,000–40,000 L where split	Pay for the water feel, not the output
Built-in pH dosing or full automation, 18–45 g/h	13	$2,511.59–$5,508.87	Same ratings as the matching standard unit	Same	Adds an acid pump; 3 of the 13 listings were out of stock
Sold by pool size, no g/h stated	5	$1,775.45–$2,511.59	40,000–100,000 L in a mild climate	Not stated	Ask the shop for the output in g/h before comparing

How much is a pool chlorinator, and which size do I need?

We read every whole-unit salt chlorinator listed by three Australian retailers on 20 October 2026: an online pool equipment retailer (Retailer 1, 38 listings), an online pool shop that sells one maker’s range (Retailer 2, 4 listings) and a national pool and rubber retail chain (Retailer 3, 6 chlorinators, one of which states no output and is left out). That is 47 listings, at the displayed retailer price. Twenty-two are standard salt units with a stated output, and they cost $1,585.88 to $3,308.78.

The output, in grams of chlorine an hour (g/h), decides the band. The table above groups them: 25 g/h from $1,585.88, 35 g/h from $1,850.37 and 40–45 g/h from $2,999.99. Features move the price within a band more than output does. In the 25 g/h band the dearest listing costs 70% more than the cheapest, for app control, a touch pad or a dearer shop rather than more chlorine.

Size the unit to your pool’s volume in litres and your climate. Each maker prints two ratings for most units, one for a cooler or temperate climate and one for a hot or tropical one, and the hot figure is 50–80% of the cooler one. Read across the sizing table below to the smallest output rated for your pool in your climate.

Your pool	Cooler climate: smallest output rated for it	Cheapest such listing	Hot climate: smallest output rated for it	Cheapest such listing
40,000 L	18 g/h (rated 50,000 L)	$1,585.88 for a 25 g/h unit, cheaper than any 18 g/h listing	18 g/h (rated 40,000 L, at its limit)	$1,585.88 for a 25 g/h unit rated 40,000–50,000 L hot
60,000 L	25 g/h (rated 80,000–96,000 L)	$1,585.88	25 g/h only on one unit rated exactly 60,000 L; otherwise 30–35 g/h	$1,850.37 for 35 g/h (rated 75,000 L)
75,000 L	25 g/h (rated 80,000–96,000 L)	$1,585.88	30–35 g/h (rated 75,000–80,000 L)	$1,850.37, at the rating's limit
100,000 L	30–35 g/h (rated 120,000–130,000 L)	$1,850.37 for 35 g/h	42–45 g/h (rated 100,000–105,000 L)	$3,172.79

The hot-rating rule: buy the chlorinator whose hot-climate rating covers your pool’s litres, and if your pool sits at that limit, the next size up costs $264–$397 more in the same range. A 75,000-litre pool needs 30–35 g/h where the maker’s tropical rating applies, and 25 g/h where its temperate rating does. Our guide to pool equipment: pump, filter and chlorinator shows where the unit sits in the system.

Why the same 25 g/h chlorinator is rated for 50,000 or 96,000 litres

A rated pool volume is not a standard. It is each maker’s own figure for how much water one unit can keep chlorinated, and it depends on sunlight and water temperature, which use up chlorine faster in the tropics. On the listings we read, three makers print it three ways: a temperate and a tropical figure, a cool and a hot figure, or a single “mild climate” figure. A single figure is the cooler-climate number. Cut it to about half to two-thirds if you live in the north.

Retailers can also print the wrong rating. Retailer 3’s page for one maker’s 25 g/h touch-pad unit says 50,000 litres in cool climates and 40,000 litres in warm ones. Retailer 1 prints 96,000 and 60,000 litres for the same unit. The maker’s own product page (404 today; we read the archived 2022 copy) gives 96,000 and 60,000 litres for the 25 g/h model, and 50,000 and 40,000 litres for the 18 g/h model. The chain’s page appears to carry the smaller model’s rating. Check the rating in the maker’s manual or on its own site, not only on a shop page.

The quotable version: the same 25 g/h chlorinator is rated for 96,000 litres in a temperate climate and 50,000 to 60,000 litres in a tropical one, so a pool’s climate matters as much as its size. Too small a unit has to run longer each day, and a cell is used up by the hour. How long a pool chlorinator lasts converts running hours into years.

What the dearer chlorinators add, and the 13% shop gap

Above the standard units are three kinds of chlorinator, each with its own price band. All prices are retailer-published and were read on 20 October 2026.

Built-in pH dosing or full automation, 13 listings, $2,511.59–$5,508.87. These add an acid pump and a pH probe, so the unit doses acid as well as making chlorine. 3 of them were shown out of stock.
Low-salt or magnesium-mineral, 7 listings, $1,399.99–$4,799.00. These run at lower salinity. One maker’s 15 g/h low-salt unit is rated for 30,000 litres, so check the litres before the label. Whether mineral is worth it is on mineral pool vs saltwater pool.
Sold by pool size with no g/h stated, 5 listings, $1,775.45–$2,511.59, rated 40,000–100,000 litres in a mild climate. Ask for the output so you can compare like with like.

The shop matters as much as the model. The same 25 g/h touch-pad unit is $2,379.34 at Retailer 1 and $2,689 at Retailer 3, 13.0% more. The same pH-dosing 25 g/h unit is $2,776.06 against $3,209, 15.6% more. The same low-salt 25 g/h unit is $3,731.95 against $4,799, 28.6% more, even on a clearance tag. Price the exact model number at two shops before you buy: on three identical units the gap was 13% to 29%.

A new chlorinator or just a new cell?

If your existing chlorinator has stopped working, the part that has usually worn out is the cell, not the control box, and a cell costs less than a whole unit. What it costs to replace a pool salt cell has 31 cell prices and the cell-to-unit ratio rule for when a whole unit is the better buy. Before buying either, rule out low salt, scale on the plates and low flow: why a chlorinator stops making chlorine puts the checks in order.

What the unit then costs you each year, in cell wear, salt and power, is worked in the maintenance cost of a salt water pool. Saltwater vs chlorine covers whether salt suits you at all.

On a new pool, the chlorinator is part of the equipment line in the build quote. Ask for the make, model, output in g/h and the maker’s hot-climate rating against your pool’s litres, then compare free pool quotes on the same equipment. Builders are listed for Brisbane, Townsville, Sydney and Melbourne.

Common questions

How much is a pool chlorinator?

A standard salt chlorinator costs $1,585.88–$3,308.78 as a complete unit at three Australian retailers on 20 October 2026. Units with built-in pH dosing cost $2,511.59–$5,508.87. One online pool equipment retailer’s chlorinator range lists 38 units with each maker’s rated pool volume.

What size chlorinator do I need for my pool?

Choose the smallest output whose hot-climate rating covers your pool’s litres if you live in the north, or whose cooler-climate rating covers it elsewhere. A 75,000-litre pool needs 30–35 g/h in a hot climate and 25 g/h in a temperate one, on the makers’ printed ratings.

How many litres does a 25 g/h chlorinator do?

On the makers’ figures printed by one retailer, 80,000–96,000 litres in a cooler climate and 40,000–60,000 litres in a hot one. One maker’s 25 g/h unit is rated 96,000 L temperate and 60,000 L tropical, per its archived product specifications.

Is a bigger chlorinator worth the extra money?

Usually, if your pool is near the smaller unit’s rating. Within the same range at the same shop, one size up costs $264–$397 more, and the bigger unit can run fewer hours each day for the same chlorine.

Does a chlorinator cost more with pH control?

Yes. Units with built-in pH dosing cost $2,511.59–$5,508.87 across 13 listings, against $1,585.88–$3,308.78 for standard units. They add an acid pump and a pH probe.

Sources

General information only, current at 2026-10-20. Pool rules differ by state and by council, and penalty amounts are updated regularly. Confirm your own obligations with your council or a registered inspector before acting.

How much does a pool chlorinator cost?