--- product_id: 2033651 title: "Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria" brand: "nature2" price: "$130.76" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/2033651-nature2-spa-stick-hot-tub-and-spa-mineral-cartridge-drop store_origin: US region: United States of America --- # Lasts up to 4 months Destroys bacteria effectively Reduces chlorine consumption Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria **Brand:** nature2 **Price:** $130.76 **Availability:** βœ… In Stock ## Summary > πŸ› Elevate your spa gameβ€”clean, clear, and effortlessly chemical-smart! ## Quick Answers - **What is this?** Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria by nature2 - **How much does it cost?** $130.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/2033651-nature2-spa-stick-hot-tub-and-spa-mineral-cartridge-drop) ## Best For - nature2 enthusiasts ## Why This Product - Trusted nature2 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Spa Sanitation:** Drop-in design fits most spa filter baskets for hassle-free installation and maintenance. - β€’ **Balanced pH, Balanced Life:** Advanced mineral technology helps maintain neutral pH, reducing water fluctuations and protecting your spa investment. - β€’ **Chlorine Reduction Formula:** Works synergistically with bromine or MPS to minimize harsh chemical use and skin irritation. - β€’ **Long-Lasting Mineral Power:** Keeps your spa water crystal clear and fresh for up to 4 months without constant chemical juggling. - β€’ **Spa Time, Not Maintenance Time:** Spend more time relaxing and less time managing complicated chemical routines. ## Overview The Nature2 Spa Stick is a drop-in mineral sanitizer designed for hot tubs and spas that destroys bacteria and reduces chlorine consumption. Compatible with most spa filter baskets, it maintains balanced pH and keeps water fresh and clear for up to 4 months, simplifying spa maintenance while enhancing water quality and user comfort. ## Description Product Description Zodiac W20750 Nature2 SPA Stick Mineral Sanitizer From the Manufacturer Nature2's patented technology uses minerals to destroy bacteria for up to four months in portable spas. This process of reducing bacteria also decreases the amount of harsh chemicals used to keep your spa water balanced. In fact, using by the Nature2 Spa Stick with Cense Spa Oxidizer, you can eliminate the use of chlorine or bromine completely! Review: Was ready to give up on my hot tub! - My spa guy was out to replace our ozonator and cover and I told him I was really frustrated trying to keep my spa water clean; and was considering selling it (we've had it for 7 years). He suggested trying Nature2 before giving up. So I drained and cleaned my spa as usual and then refilled it. Simply added the Nature2 stick into our filter compartment (won't fit inside our filters) and added the recommended amount of Dichlor to activate it. After each use I add 3/4 ounce MPS non-chlorine shock and once per week I add 1 1/2 teaspoons of Dichlor (very small amount). That is it! Before I was messing with a half dozen chemicals and clarifiers and had horrible results (having tried Bromine and a liquid copper system as well). No more cloudy water, musty smells, tub rings or strong chemical fumes that would cause breathing distress. Now nothing but crystal clear and fresh smelling water day after day. It is extremely simple to use and costs MUCH less than my previous methods. I am once again enjoying my spa and will never use any other sanitizer. I've also noticed the alkalinity and pH rarely need adjusting, whereas before I was dealing with wild fluctuations. As a side note: the ozonator is a must have as far as I'm concerned -- it works really well with the Nature2 stick, minimizing the use of Dichlor which some have noted that they don't use at all. Also, make sure your spa cover is clean and not water-logged. If it is it can cross contaminate your water if it is harboring mold and bacteria. A new spa cover is expensive but a smart idea if you want to maintain clean water and thermal effectiveness. And keep your filters clean!! Clean them at least once per month. Review: We really like this product. - This system actually works quite well, and it makes the spa water much more pleasant than any of the other alternatives. In a previous life, I was a chemist and am an expert on water chemistry. It seems that this material is creating a superoxide, similar to your ozone generator on your tub. That is a very safe and effective way of controlling bacteria and other unwanted biological growths. It is very effective on simple organisms, but our bodies have catalase, which protects us from the biocidal properties of hydrogen peroxide. The system does require more rigorous habits than a chlorine or bromine system. You do need to add a shock before every use. Also, I filter the water when I fill the tub, so you do need to add minerals back to the water. This system does tend to foam more than when I had chlorine or bromine. Another tendency is that the pH tends to go high, not low. Buy some pH down if you convert. This is actually a big plus, since the tendency for the system to raise pH tends to be better for you. I have had to use more materials to control oils and soap in the system. Do your tub, body, washing machine, and dryer a favor and cut back the amount laundry detergent you use by half. The active ingrediants in soaps and detergents are call surfactants. They have bizarre chemistries, and are much less effective at cleaning and tend to build up on machinery when you use too much. This is even more important if you use an he machine. Even with controlling the amount of soap, you will need to control this buildup. I have found that LeisureTime Spa Bright and Clear works well. The spa bright and clear works well on congealing the soaps and oils permitting them to be removed, but they tend to build up in two places. One is on the side of the tub above the waterline and inside the filter box. This is easy to deal with. Just wipe the surfaces clean with a soft cloth. The congealed material is mostly soap, so it cleans as you wipe. The second place the soap and oil deposits build up is on the filters. Enough builds up that you will probably need to clean your filters more often. I've tried a couple of the filer cleaning solutions, but I have found using Cascade in the dishwasher w/o any additional additives works best. Stuff for sheeting action is great to reduce spots but is not good when it is coating your filters. The one exception would be if your tub's water is very hard. There are acids in the filter cleaning solutions that would remove scale, which Cascade will not be so good at. When it comes to soap and oil buildup in your tub. These materials can have a greenish tinge. This can be mistaken for algae buildup. If you are unsure, I have found adding a cup of Clorox bleach to the tub, waiting 24 hrs, and checking. If the green goes away, you had algae and you should check your chemical balance. If it is just as green, then you may have oil buildup and you need to treat your tub with more bright and clear then clean as above. With care, we have found that our tub is a lot more pleasant and healthy than when using either chlorine or bromine. ## Features - ADVANCED TECHNOLOGY SANITIZING SPA STICK: This drop-in mineral sanitizer is designed specifically for spas and hot tubs, using minerals to help maintain a neutral pH and destroy bacteria to keep your hot tub or spa water clean, clear, and inviting. - REDUCES CHLORINE CONSUMPTION: The powerful mineral formula works with bromine to continuously control bacteria in hot tub & spa water while reducing chlorine consumption. - DESTROYS BACTERIA: When combined with an MPS, the Spa Stick offers a chlorine alternative to give you cleaner, clearer water with round the clock disinfection. - LOW MAINTENANCE & LONG LASTING: Simply drop the Nature2 Spa Stick into your spa’s filter basket and forget about it. Keep spa water clean and fresh-smelling for up to 4 months so you can spend more time relaxing. - COMPATIBLE WITH MOST SPA FILTER BASKETS: Designed to work inside your existing spa or hot tub filter basket for quick, hassle-free installation and dependable sanitizing performance without additional equipment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002IT5JS4 | | Best Sellers Rank | #170,675 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4,592 in Pool & Spa Replacement Parts | | Brand | Nature2 | | Brand Name | Nature2 | | Customer Reviews | 4.6 out of 5 stars 5,478 Reviews | | Global Trade Identification Number | 00706175207502 | | Item Form | Stick | | Item Type Name | Zodiac W20750 Nature2 SPA Stick Mineral Sanitizer | | Manufacturer | Fluidra | | Manufacturer Part Number | W20750 | | Manufacturer Warranty Description | Warranted against manufacturer's defects | | Model Number | W20750 | | Number of Items | 1 | | Product Benefits | Kills Bacteria, Protects Against Skin Irritation | | UPC | 747946954041 852673931712 760625118411 802774885414 706175207502 705890046304 798762673395 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Nature2 - **Item Form:** Stick - **Product Benefits:** Kills Bacteria, Protects Against Skin Irritation - **UPC:** 747946954041 852673931712 760625118411 802774885414 706175207502 705890046304 798762673395 - **Global Trade Identification Number:** 00706175207502 ## Images ![Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria - Image 1](https://m.media-amazon.com/images/I/71q42pNVZlL.jpg) ![Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria - Image 2](https://m.media-amazon.com/images/I/81EQvrpSGVL.jpg) ![Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria - Image 3](https://m.media-amazon.com/images/I/81cFVesQSJL.jpg) ![Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria - Image 4](https://m.media-amazon.com/images/I/815hsGgYQVL.jpg) ![Nature2 Spa Stick Hot Tub & Spa Mineral Cartridge | Drop-in Mineral Sanitizer Replacement Cartridge for Hot Tub or Spa Filter Basket | Reduces Chlorine Consumption and Destroys Bacteria - Image 5](https://m.media-amazon.com/images/I/81zi5Fm5QgL.jpg) ## Questions & Answers **Q: How much chlorine do you use with this? Do not like the chlorine if I don't have to use it I will be happy or an alternative. Our tub is 140 gallons. Thank you** A: No chlorine. We have a non chlorine hot tub. It have an ozinator system on it which keeps the water cleaner and clear. We use the mineral stick sanitizer with the filter to help keep it sanitized. It fits inside the filter. Use Leisure Time RENU5 Renew Non-Chorine Shock, we buy the 5-Pound container before and after each use of the tub, just a capful or 2 and turn on air jets for about 60 seconds before getting in.... do the same when you get out.... to mix it around good. Your hot tub needs air to the water occasionally when not in use, so 1/2 opening the lid for 12 hours 1x a week is good...keep the filter clean (we clean in sink with sprayer then set in top rack of dishwasher, run dishwasher (no soap/detergent) on high hot cycle, and air dry in sink over night.) People should be free of wearing perfumes or lotions prior to getting into tub if at all possible...that is what ends up clouding up the water the most.... and rain water. So keep covered on rainy days. Unit off. Hope this helps... if your unit does not have the ozinator on it...you can have one installed for around $400 possibly less, depending on the unit. If it has an ozinator in it, you should never use chlorine in it then. Hope this helps. **Q: Our current Pro Clear Sanitizier is blue and twists onto the the top of the filter. This one is yellow with different top. Can we use this one?** A: They are both made by Nature2 and the only difference is the color and the cap. I popped the cap off my blue one and put that on the yellow one as they are much cheaper and easier to find. **Q: This was offered with the intex inflatable spa but doesn't fit filter. why is it offered with the spa? is there a mineral filter that does fit?** A: If it doesn't fit inside try to stick/wedge it beside the filter/housing. If that still won't work just drop it in the bottom of the tub and kick it around a couple times when ur in. I also pick it up and hold it in front of a jet for a min or so while I'm in sometimes...works just fine. **Q: How does this mount in a horizontal filter** A: Hi Jim,Thank you for your question. Just insert it inside the spa filter and ensure it does not block the flow of water through the filter. For more installation details, please refer to the Nature2 Spa Stick product manual found here: http://www.zodiacpoolsystems.com/en/products/mineral-sanitizers/spa/nature2-spaWe hope this response was helpful. Please let us know if you have any other questions.Best Regards,Zodiac Pool SystemsManufacturer of Jandy, Polaris, and Zodiac products ## Customer Reviews ### ⭐⭐⭐⭐⭐ Was ready to give up on my hot tub! *by P***R on April 4, 2014* My spa guy was out to replace our ozonator and cover and I told him I was really frustrated trying to keep my spa water clean; and was considering selling it (we've had it for 7 years). He suggested trying Nature2 before giving up. So I drained and cleaned my spa as usual and then refilled it. Simply added the Nature2 stick into our filter compartment (won't fit inside our filters) and added the recommended amount of Dichlor to activate it. After each use I add 3/4 ounce MPS non-chlorine shock and once per week I add 1 1/2 teaspoons of Dichlor (very small amount). That is it! Before I was messing with a half dozen chemicals and clarifiers and had horrible results (having tried Bromine and a liquid copper system as well). No more cloudy water, musty smells, tub rings or strong chemical fumes that would cause breathing distress. Now nothing but crystal clear and fresh smelling water day after day. It is extremely simple to use and costs MUCH less than my previous methods. I am once again enjoying my spa and will never use any other sanitizer. I've also noticed the alkalinity and pH rarely need adjusting, whereas before I was dealing with wild fluctuations. As a side note: the ozonator is a must have as far as I'm concerned -- it works really well with the Nature2 stick, minimizing the use of Dichlor which some have noted that they don't use at all. Also, make sure your spa cover is clean and not water-logged. If it is it can cross contaminate your water if it is harboring mold and bacteria. A new spa cover is expensive but a smart idea if you want to maintain clean water and thermal effectiveness. And keep your filters clean!! Clean them at least once per month. ### ⭐⭐⭐⭐⭐ We really like this product. *by J***K on September 28, 2017* This system actually works quite well, and it makes the spa water much more pleasant than any of the other alternatives. In a previous life, I was a chemist and am an expert on water chemistry. It seems that this material is creating a superoxide, similar to your ozone generator on your tub. That is a very safe and effective way of controlling bacteria and other unwanted biological growths. It is very effective on simple organisms, but our bodies have catalase, which protects us from the biocidal properties of hydrogen peroxide. The system does require more rigorous habits than a chlorine or bromine system. You do need to add a shock before every use. Also, I filter the water when I fill the tub, so you do need to add minerals back to the water. This system does tend to foam more than when I had chlorine or bromine. Another tendency is that the pH tends to go high, not low. Buy some pH down if you convert. This is actually a big plus, since the tendency for the system to raise pH tends to be better for you. I have had to use more materials to control oils and soap in the system. Do your tub, body, washing machine, and dryer a favor and cut back the amount laundry detergent you use by half. The active ingrediants in soaps and detergents are call surfactants. They have bizarre chemistries, and are much less effective at cleaning and tend to build up on machinery when you use too much. This is even more important if you use an he machine. Even with controlling the amount of soap, you will need to control this buildup. I have found that LeisureTime Spa Bright and Clear works well. The spa bright and clear works well on congealing the soaps and oils permitting them to be removed, but they tend to build up in two places. One is on the side of the tub above the waterline and inside the filter box. This is easy to deal with. Just wipe the surfaces clean with a soft cloth. The congealed material is mostly soap, so it cleans as you wipe. The second place the soap and oil deposits build up is on the filters. Enough builds up that you will probably need to clean your filters more often. I've tried a couple of the filer cleaning solutions, but I have found using Cascade in the dishwasher w/o any additional additives works best. Stuff for sheeting action is great to reduce spots but is not good when it is coating your filters. The one exception would be if your tub's water is very hard. There are acids in the filter cleaning solutions that would remove scale, which Cascade will not be so good at. When it comes to soap and oil buildup in your tub. These materials can have a greenish tinge. This can be mistaken for algae buildup. If you are unsure, I have found adding a cup of Clorox bleach to the tub, waiting 24 hrs, and checking. If the green goes away, you had algae and you should check your chemical balance. If it is just as green, then you may have oil buildup and you need to treat your tub with more bright and clear then clean as above. With care, we have found that our tub is a lot more pleasant and healthy than when using either chlorine or bromine. ### ⭐⭐⭐⭐⭐ How to use, Simplfied *by S***D on September 26, 2015* This is the best purchase for our hot tub, and we use our tub every day. I started getting an allergic reaction to the bromide tablets we were using and thought my hot tub days were over. This product not only works better then the bromide tablets but it is much easier to use. Very simply and without a chemistry lesson, here is how use set up and use this. First drain your tub, clean and then refill. Once refilled, balance the water. Get the Ph, Alkalinity and hardness in check. Once that is done insert the stick into the supply/intake tube that the filter fits onto. I needed to use the supplied extension legs to make sure the stick did not block the bottom of the supply/intake tube. Now simply add the required amount of Dichlor, (chlorinating granuals) to the tub. Read the bottle to determine how much you need. I have a 2 person tub and I need .84 Tbsp, so I added 1 Tbsp of the granuals. This activates the stick. When your chlorine reading comes down after your first shock you are ready to go. After each use I add the correct amount (based on your tub size) of MPS. This is also 1 Tbsp for me. I use the 2 pack of Oxy-Spa, (http://www.amazon.com/gp/product/B00AVYTYS4?psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00). Once a week or so I will hit it with a Tbsp of the chlorine shock for peace of mind. By the way, the chlorine is gone in a few hours. I now have a tub with zero chlorine odor or the accompanying dry skin. It has stayed perfectly clear and looks as if I just refilled and once again, ZERO odor or side affects. Lastly, I am not sure if the Nature2 test strips are really necessary, http://www.amazon.com/gp/product/B002IT5JT8?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00. I only put the MPS in after I use. The MPS is between zero and very low when I use the tub so that it is really like going into a fresh filled tub. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/2033651-nature2-spa-stick-hot-tub-and-spa-mineral-cartridge-drop](https://www.desertcart.us/products/2033651-nature2-spa-stick-hot-tub-and-spa-mineral-cartridge-drop) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-16*