These are the real deal (not cheap imitations). I have used Nature 2 Spa cartridges in my spa for 5 years and have never had an issue with water chemistry. I always look for deals like this on eBay and buy in bulk when available to save money.
Verified purchase: Yes | Condition: New
I tried using off brand equivalent ones that don't work as well.
Verified purchase: Yes | Condition: New
Received quickly. Good price. Been using Zodiac Nature 2 Spa Sticks for years. Keeps tub nice and clean
Verified purchase: Yes | Condition: New
I have been using Zodiac Nature 2 in my Hot Tub for 17 years great sanitizer clear as can be
Verified purchase: Yes | Condition: Pre-owned
Using this hotubjoy mineral cartridge keeps my hottub water so much cleaner and clearer ‼️. I barely have to put chlorine in it.
Verified purchase: Yes | Condition: New