Intex Krystal Clear QS1200 Saltwater System Review
Updated: Sep 11
The Intex Krystal Clear QS1200 is designed for above-ground pool owners who want chlorine sanitation without manually adding chlorine every day.
But there is one important thing to understand before buying it:
A saltwater pool is still a chlorine pool.
The difference is that instead of you regularly pouring or adding chlorine to the water, the QS1200 uses an electrolytic cell to generate chlorine from salt dissolved in the pool.
And despite sometimes being grouped together with pool filters, the QS1200 does not replace your filter pump.
Water still needs to travel from the pool through your cartridge or sand filter first. The QS1200 is installed after that filtration equipment, where it generates chlorine before the water returns to the pool.
The model reviewed here is the QS1200 / 26669EG, rated by Intex for above-ground pools up to 15,000 gallons, with chlorine output of 12 grams per hour and a required filter-pump flow between 700 and 3,200 GPH.
Quick Verdict
The Intex QS1200 makes the most sense if you already have a suitable filter pump and want to move away from manually maintaining chlorine with tablets or liquid chlorine as your everyday sanitation method.
Its 12 g/hr chlorine output, automatic scheduling and self-cleaning cell cycles make day-to-day chlorine generation relatively hands-off once the salt level and water chemistry are correctly established.
What we like most is that it can be added to an existing cartridge or sand-filter system rather than requiring you to replace your filtration equipment.
But don't mistake it for a completely maintenance-free solution.
You still need to test the water, keep the salt level within the correct range, monitor chlorine and pH, keep the electrolytic cell clean and make sure the filter pump is moving enough water through the system.
Best for: Above-ground pool owners with a compatible 700–3,200 GPH filter pump who want automatic chlorine generation for a medium or larger pool.
Skip it if: You want a complete pump/filter/chlorinator in one package, have a smaller pool better suited to one of Intex's lower-capacity QS models, or don't want to manage salt levels and cell maintenance.
Intex QS1200 Specifications
The two figures we'd pay most attention to are 12 g/hr chlorine output and the 700–3,200 GPH pump-flow requirement. The QS1200 can only generate chlorine properly when a compatible filter pump is actually moving water through the cell.
How Does the Intex QS1200 Saltwater System Work?
The principle is fairly simple.
You add the correct amount of pool salt directly to the pool water and allow it to dissolve.
As that slightly salty water passes through the QS1200's electrolytic cell, an electrical process converts chloride from the dissolved salt into chlorine.
That chlorine sanitizes the pool just as manually added chlorine does.
It isn't a chlorine-free system, and it doesn't eliminate the need to maintain proper water chemistry.
What changes is how the chlorine gets into the pool.
Instead of repeatedly adding chlorine yourself, the system produces a controlled amount while the pool water is circulating.
Over time, the chlorine performs its sanitizing job and the cycle continues using the salt already present in the water.
The QS1200 Does Not Replace Your Pool Filter
This is probably the most important compatibility point on the page.
The QS1200 is not a cartridge filter, sand filter or circulation pump.
Your filtration system still does the job of physically removing dirt and debris from the water.
The correct circulation order is broadly:
Pool → Pump → Filter → QS1200 Saltwater System → Pool
That means the water is filtered first and then passes through the saltwater cell before returning to the pool.
If you're still choosing the actual filtration system, our Best Cartridge Filters for Above-Ground Pools and Best Sand Filters for Above-Ground Pools guides cover the two main routes we'd consider.
What Filter Pump Do You Need?
Intex specifies a filter-pump flow between 700 and 3,200 GPH for the QS1200.
That's a wide range, which is useful because the chlorinator can work alongside many existing above-ground pool filtration systems.
But don't choose the filter pump simply because it falls somewhere inside that range.
The pump still needs to be large enough to circulate your pool volume effectively.
A 700 GPH pump may satisfy the QS1200's minimum flow requirement while still being too small for a large 12,000 or 15,000-gallon pool.
Those are two separate questions:
Can the saltwater system operate at this flow?
and:
Is this enough filtration and circulation for my pool?
Both need to be yes.
If you don't know your actual water volume, use our Pool Volume Calculator for Above-Ground Pools before sizing the filtration equipment or working out how much salt you need.
Can You Use the QS1200 With a Cartridge or Sand Filter?
Yes.
The QS1200 isn't tied to one filtration type.
You can use it after a compatible cartridge-filter system or sand-filter system provided the flow and connections are suitable.
It also does not have to be paired exclusively with an Intex filter pump.
The current QS1200 product information specifically requires the correct flow rate, and the product material also indicates compatibility with non-Intex filter pumps.
That can make the QS1200 useful if you've upgraded the filter but still want a standalone Intex chlorinator.
You should still check hose sizes and fittings rather than assuming that every different brand will connect directly.
How Much Salt Does the Intex QS1200 Need?
Intex's salt tables use an optimal salt concentration of around 3,000 ppm for its standard saltwater systems.
How much salt you actually add depends on:
your true pool volume
how much salt is already in the water
whether you're filling from fresh water or topping up an existing salt pool
That's why we wouldn't simply tell every QS1200 owner to add a fixed number of bags.
Calculate the actual water volume first and use the current Intex salt table or manual for your pool.
And remember that salt doesn't disappear simply because chlorine is being generated.
Most salt loss happens when water leaves the pool — for example through draining, splash-out, leaks or backwashing — and is replaced with fresh water.
Is a Saltwater Pool Chlorine-Free?
No.
This is one of the most common misunderstandings around saltwater pools.
The QS1200 is a chlorine generator.
It takes dissolved salt and produces chlorine from it.
So you're still sanitizing the pool with chlorine.
The benefit is that the chlorine can be generated gradually rather than relying entirely on repeated manual doses.
Some swimmers also prefer the feel of relatively low-salinity saltwater compared with traditionally chlorinated pool water.
But you still need to monitor free chlorine and the rest of your water chemistry.
You Still Need to Test the Water
Installing the QS1200 doesn't mean you can stop testing the pool.
You still need to know whether:
chlorine is in the correct range
pH is stable
alkalinity is appropriate
salt level is correct
other water-balance factors need attention
The chlorinator can't know everything happening in your pool.
Hot sunny weather, heavy swimmer use, rain and contamination can all change chlorine demand.
For a simple home testing option, our EASYTEST 7-Way Pool Test Strips review covers strips that check the main water-balance readings used by above-ground pool owners.
Automatic Timer and Self-Cleaning Modes
The QS1200 has a redesigned control panel with a 24-hour auto-clock cycle.
Once you've established an appropriate operating schedule, the system can repeat that chlorine-production routine rather than requiring you to start it manually every day.
Intex also provides three self-clean modes: 6, 10 or 14-hour cycles.
The self-cleaning function is designed to reduce scale buildup on the electrolytic cell by periodically reversing polarity.
That helps reduce maintenance, but it doesn't mean the cell will never need inspection or cleaning.
Hard water and scale can still affect it over time.
Is the 15,000-Gallon Rating Realistic?
Intex rates the QS1200 for pools up to 15,000 gallons and gives it a maximum chlorine output of 12 g/hr.
I wouldn't automatically interpret that as:
“Every 15,000-gallon pool will always have enough chlorine no matter what.”
Chlorine demand isn't fixed.
A heavily used 15,000-gallon pool sitting in strong sunlight can require more chlorine than the same pool on a mild week with only occasional swimmers.
The 15,000-gallon figure is therefore best treated as the manufacturer's maximum sizing, not a guarantee that the system will always keep up under every condition.
For smaller pools, the QS1200 has more chlorine-production headroom and you can adjust the daily operating time accordingly.
The important thing is to use your actual water-test results rather than assuming the largest published pool rating automatically determines the perfect runtime.
What We Like About the Intex QS1200
It automates everyday chlorine production. Once the salt concentration, pool balance and operating time are established, you don't have to manually add your normal chlorine dose every day.
The 12 g/hr output suits a broad range of above-ground pools. The QS1200 is the higher-capacity standalone Intex model aimed at pools up to 15,000 gallons.
It works alongside either cartridge or sand filtration. You don't have to replace a good filter just because you want to convert to saltwater chlorination.
The 700–3,200 GPH compatibility range is useful. It works with a wide range of above-ground filtration setups.
The automatic timer is practical. Once you've worked out the right daily production time, the system can repeat it.
The self-cleaning cycles reduce some cell maintenance. They don't eliminate cleaning completely, but they help manage scale buildup.
Replacement parts remain supported. Intex's current 2026 parts catalogue still lists the QS1200/26669EG and components including the titanium electrode, flow sensor, cell housing and control station.
What We Don't Like
It doesn't eliminate pool chemistry work. You'll still need to test chlorine, pH, alkalinity and salt.
You still need a separate filter pump. Anyone expecting this box to replace their complete filtration system will need additional equipment.
The electrolytic cell is a wear component. Self-cleaning helps, but scale, age and use can eventually mean cleaning or replacement.
Plumbing isn't automatically universal. Different Intex, Bestway, Coleman and custom pool setups can use different hose sizes and adapters.
The 15,000-gallon rating shouldn't be treated as a promise of unlimited chlorine capacity. Large pools under heavy chlorine demand may require longer operating periods or occasional additional treatment.
Who Should Buy the Intex QS1200?
We'd shortlist the QS1200 if:
you want to convert an existing above-ground pool to saltwater chlorination
your pool is within Intex's 15,000-gallon maximum
you already have a compatible filter pump
your filter-pump flow falls between 700 and 3,200 GPH
you want less routine manual chlorine dosing
you're comfortable testing salt and water chemistry
you want a standalone chlorinator rather than replacing your filtration system
For that buyer, the QS1200 is a straightforward way to add automated chlorine generation to an existing pool setup.
Who Should Skip It?
We wouldn't choose the QS1200 simply because “saltwater sounds maintenance-free.”
It isn't.
If you dislike testing pool water, don't want to monitor salt or don't want to occasionally inspect an electrolytic cell, saltwater chlorination doesn't remove those responsibilities.
It's also unnecessary for some small pools.
And if you're starting from scratch and need both the filter and chlorinator, one of Intex's combined sand-filter/saltwater systems may make more sense than buying the pieces separately.
Other Intex Saltwater System Options
This review is specifically about the QS1200 / 26669EG, which is the standalone Intex saltwater system rated for pools up to 15,000 gallons.
Intex also offers smaller standalone saltwater systems for lower-volume pools:
QS200 — up to 2,200 gallons
QS400 — up to 4,500 gallons
QS500 — up to 7,000 gallons
QS700 — up to 8,500 gallons
QS1200 — up to 15,000 gallons
The smaller models reduce chlorine output as pool capacity drops, so there is little reason to buy the QS1200 for a very small pool simply because it is the largest standalone model.
Intex also sells QX2100 and QX2600 systems that combine a sand filter pump and saltwater chlorinator in one unit. Those are a different buying route because they replace both the filtration and chlorination equipment rather than simply adding a chlorinator to an existing filter system.
If you already have a suitable cartridge or sand filter pump, the standalone QS range is generally the more relevant comparison.
Our Final Verdict
The Intex QS1200 makes the most sense when you already have a suitable above-ground pool filtration system and want an easier way to maintain everyday chlorine.
Its biggest advantage isn't that it turns the pool into some kind of chlorine-free system.
It doesn't.
The advantage is that it produces the chlorine for you from salt already dissolved in the water.
The 12 g/hr output, programmable operation and self-cleaning cycles make the QS1200 a good fit for medium and larger above-ground pools, while the wide 700–3,200 GPH pump-flow range makes it compatible with many filtration setups.
Just remember that the QS1200 sits alongside good filtration and water testing rather than replacing either of them.
For an above-ground pool owner who understands that distinction, we think the QS1200 remains one of the more practical ways to move to saltwater chlorination without replacing the entire filtration system.
Frequently Asked Questions
Is the Intex QS1200 suitable for above-ground pools?
Yes. The QS1200 is designed for above-ground pools and Intex rates model 26669EG for pools up to 15,000 gallons.
Does the Intex QS1200 include a filter pump?
No. The QS1200 is a standalone saltwater chlorine generator. You still need a separate cartridge or sand-filter pump.
What pump flow does the QS1200 need?
Intex specifies a filter-pump flow between 700 and 3,200 GPH.
How much chlorine does the Intex QS1200 produce?
The QS1200 is rated at 12 grams of chlorine per hour.
Is an Intex saltwater pool chlorine-free?
No. The system generates chlorine from salt dissolved in the pool water. You still need to maintain an appropriate free-chlorine level.
How much salt does the Intex QS1200 need?
Intex's standard saltwater-system tables target approximately 3,000 ppm salt. The actual amount of salt to add depends on your pool volume and how much salt is already in the water.
Can I use the QS1200 with a sand filter?
Yes, provided the pump and plumbing are compatible and the filter-pump flow is between 700 and 3,200 GPH.
Can I use the QS1200 with a cartridge filter?
Yes. The saltwater system is installed after the cartridge filter and works as the chlorination stage rather than the filtration stage.
Can the QS1200 work with a non-Intex filter pump?
It can be used with other compatible filtration setups provided the flow rate and plumbing connections are suitable. Check hose sizes and fittings before buying.
What other Intex saltwater system sizes are available?
Intex offers several smaller standalone QS saltwater systems, including the QS200, QS400, QS500 and QS700. The QS1200 reviewed here is the largest standalone model in this range, rated for pools up to 15,000 gallons.
More Chemicals & Water Care Help
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