Product Information
Description
King Technology FROG Serene Cartridge Kit
Four months of silky, low-bromine water.
The King Technology FROG Serene Cartridge Kit (MPN 01-14-3856, SKU PST-01143856) is the complete refill set for your FROG Serene floating or in-line spa sanitizing system, formerly sold as Spa Frog. You get one blue mineral cartridge and three yellow bromine cartridges, enough to keep a hot tub clean, soft, and clear for roughly a full four-month season. FROG minerals work alongside a low, steady dose of bromine so your water stays balanced with up to 50% less bromine than bromine alone.
Why PST Customers Pick This
Minerals Plus Bromine
FROG minerals create a residual that works together with a low level of bromine to destroy contaminants faster than bromine used on its own.
Silky, Soft Water
The mineral cartridge softens your spa water, so it feels gentler on skin and eyes and carries far less of that heavy chemical odor.
Adjustable Bromine Dial
Each yellow bromine cartridge uses a water-activated diffuser with a dial you turn to match your tub size and bather load. No daily scooping.
Snap-In Refills
Both cartridges snap into the FROG Serene floating cap or twist into the in-line basket in under a minute. No tools, no measuring cups.
Four-Month Supply
One mineral cartridge lasts about four months or until you drain and refill, and three bromine cartridges carry you across that same stretch.
Genuine King Technology
Authentic FROG Serene 01-14-3856 cartridges built to the exact fit and fill of your Serene holder. No off-brand refills that leak or jam.
Handling Notice
Bromine is a strong oxidizer, handle the yellow cartridge with care. Keep cartridges sealed and dry until use, never mix bromine with chlorine or other chemicals, and wash your hands after loading. Add cartridges to a filled, circulating spa only, and always maintain bromine between 3 and 5 ppm. Store the kit in a cool, dry place away from children and pets.
Specifications
Frequently Asked Questions
What exactly comes in the 01-14-3856 kit?
One blue mineral cartridge and three yellow bromine cartridges. The mineral cartridge runs about four months, and the three bromine cartridges cover that same four-month window, roughly one every two to four weeks depending on how hard you use the tub.
Does this fit both the floating and in-line FROG Serene systems?
Yes. These are the standard FROG Serene cartridges, so they snap into the floating cap and also drop into the in-line cartridge basket. If your holder says FROG Serene or Spa Frog, this kit is the right refill.
What size hot tub does this treat?
The FROG Serene system is rated for spas from 150 to 600 gallons, which covers most residential hot tubs. Set the bromine cartridge dial higher for larger tubs or heavy bather loads and lower for small, lightly used spas.
How is this different from just using bromine tablets?
The blue mineral cartridge adds FROG minerals that team up with bromine to kill bacteria, letting you run up to 50% less bromine. The result is softer, clearer water with less chemical smell, and you replace a prefilled cartridge instead of scooping tablets.
Can I set this up myself?
Yes, it takes about a minute. With the spa filled and the pump circulating, twist open your FROG Serene holder, snap in the blue mineral cartridge and one yellow bromine cartridge, set the bromine dial, and close it up. Keep the two spare bromine cartridges sealed until you need them.
Order the FROG Serene Cartridge Kit From PST
Authorized King Technology dealer with the genuine 01-14-3856 refill kit in stock and ready to ship.
Additional Info
| Category | Pool Products Pool Accessories Chemical Feeders |
| SKU | PST-01143856 |
| MPN | 01-14-3856 |
| Manufacturer | King Technology |
| Weight | 1.2 lb |
Let customers speak for us
Ease of purchase replacement part took care of the problem
Received the correct replacement part. Not a real tough job. Part works great!
Better than the PA version at fraction of the cost.
Just what I needed for my syllent pump that comes with no Jacuzzi pump coupler. Do need a 1 1/2x1 1/4 reducer but everything will work out just fine..
This product seems to work great so far! I’m only two days in but the leak around my steps seems to have been completely stopped after applying this
All went well. Fast shipping AAAAAAAAAAA++++++++++++
Our pool and spa are over 25 yrs old. When the spa air button stopped working, we found that it was no longer avaliable. We did some online searching and found that this was a good replacement option and found it on the PST Pool Supplies website. We ordered it and once it arrived, we were very happy that we were able to install it and it worked fine.
Exact replacement Weir door that fit perfectly! Solved the problem of my old worn out doors!
Excellent price on well built wet end. Shipping was fairly fast as well
I installed the new wire with no problem fit right in and clamp her down like they took the old one out works great now
PST Pool Supply Company is a wonderful company to do business with. The customer always comes first with them.
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