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- – 4-month term
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FREE 30-day refund/replacement
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Availability:
In Stock.
Arrives
Saturday, Nov 14
Recently Viewed
At a glance
- Condition
- New
- Model
- PUB2030-2
- Dimensions
- 5.13 x 4.13 x 4.13 in
- Weight
- 1.26 lb
Features 1
- Suitable for 20k-30k Gallons Pools Black
Specs 4
| Product Dimensions | 5.13 x 4.13 x 4.13 inches |
|---|---|
| Item Weight | 1.26 pounds |
| Manufacturer | Meifrenship |
| Item model number | PUB2030-2 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 14
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This was the answer!
Pool has never looked so good!
Reviewed in the United States on August 30, 2026 by Gail
Crystal clear
Makes pool clear in no time but product does not last long
Reviewed in the United States on August 22, 2026 by Autumn Litzenberger
Convenient.
Works great keeping pool clear!
Reviewed in the United States on August 24, 2026 by Susan t.
Pool cartridge that adds a small amount of copper to help avoid algae problems
My 30 plus year old pool originally came with a system and cartridges like this. I replaced it with a salt water system and also installed an ozone generator and a copper ionization system. I also use Boric Acid in my pool and haven't had any problems with algae. The ionizer copper rods are pretty worn out so I decided to try this Meifrenship pool cartridge. The cartridge weighs 15.8 ounces and consists of a plastic cage with a metal cylinder with open ends with what looks like copper particles (blue green - see photos). Unfortunately, the instructions don't really detail what is inside the cartridge or what purity or quantities are involved. I put it in my skimmer basket and took a sample of water and it tested at a low level of copper, of course I took the water sample from right next to the cartridge. I tested the pool water 24 hours later with two different copper testing kits and both failed to detect any copper in the pool water. The equals my experience in the past with cartridges and the copper ionizer system in that the amount of copper is so small that it cannot be detected. That doesn't mean that it doesn't work just that the levels are very low. My pool is just over 30,000 gallons so it is at the top limit for this cartridge. My chlorine level did go up 24 hours after testing so that is a positive sign. If is hard to keep chlorine in a pool in Texas when it is over 100 degrees regularly. My pool water is currently 91 degrees. There are many such cartridges for sale on Amazon and without any documentation or lab testing it is hard to know what exactly you are adding to your pool but my experience in the past with these type of cartridges is that they greatly reduce the amount of chlorine you have to add. I use a saltwater generator so I am not buying chlorine but it does save me from have to use the salt cell as much. At the current price of chlorine tablets you probably can't go wrong with this for using less chlorine and not needing chemicals for algae problems.
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Reviewed in the United States on July 6, 2026 by JM
It works
It was good and served its purpose
Reviewed in the United States on August 13, 2026 by Michael R. Garza
Great
This product helps make pool care so easy for a dummy like me 😂
Reviewed in the United States on July 11, 2026 by Traci
Saved my pool this summer
I’m so glad I ordered this! We’ve had such a hot and harsh summer in Baja that the pool needed a lot of extra help at times. I decided to give this a shot and I wish I started with it! Will definitely buy again! Perfect for our 20k gallon pool! Easy to use. Great price for no longer have to struggle with crazy water levels. Crystal clear. Durable as heck before we use sit I dropped the darn thing so many times, I’m clumsy I can’t help it, my husband was like whelp there goes taht but, to our surprise it was still intact lol. No leaks. Pool looks crystal clear and feels cleaner.
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Reviewed in the United States on October 5, 2026 by Feral Squirrel
Worth the money
If you have a 20,000–30,000 gallon pool, this is definitely worth checking out! 🏊♂️💦 Designed specifically for larger pools, it’s a great option for keeping up with regular pool maintenance without constantly having to worry about whether it’s suitable for your pool size. Perfect for those with bigger backyard pools! 🌊☀️
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Reviewed in the United States on August 27, 2026 by Amazon Customer