Pool and Spa

The Pool CuZn & Spa CuZn Mineral Purifiers (formerly known as MegaDisk/MaxiDisk)

Chemical Free Pool Treatment, an all natural, salt free alternative to chlorine, bromine & other toxic chemicals

90 DAY MONEY BACK GUARANTEE! If you aren’t completely satisfied with your Pool CuZn or Spa CuZn, you may return it for a full refund. 

  • The Pool CuZn & Spa CuZn installs in seconds! Simply place in your existing skimmer basket
  • No skimmer basket in your spa? scroll below to learn more about our Spa Core CuZn
  • Takes the headache out of pool maintenance, 3-5 months lifetime for the Pool & Spa CuZn
  • Purifies the pool water, regulates pH, softens water, prevents scale
  • Creates a bacteriostatic environment, preventing mold, bacteria & algae growth
  • Unlike other chlorine alternatives, the Pool & Spa CuZn are stain free
  • Proven technology, already installed in thousands of pools & spas nationwide
  • Saves time & money, Made in USA
  • Eliminates testing, chemistry & nearly all chemical additives. Simply add a Potassium Monopersulfate (MPS) “mini shock” on a weekly basis
  • The Pool CuZn & Spa CuZn

    59.95 $89.95 $ Select options
  • The Spa Core CuZn Chemical Free, Natural Spa Treatment (for spa without skimmer baskets)

    59.95 $ Add to cart

How The Pool CuZn & The Spa CuZn Work: 

How does the Pool CuZn work? Its an all-natural process utilizing catalytic action & redox (reductions/oxidation) principal of dissimilar metals, made possible by our unique reticulated KDF media. When the pool water comes in contact with the KDF disc, a reaction takes place that forms copper & zinc hydroxides. These controlled releases purify the water creating a conditioned, stable environment that prevents scale & bacteria growth.

The Pool CuZn is 6″ diameter X 2″ height. The discs are flexible and slightly oversized, offering universal compatibility. If necessary, the discs can be trimmed down to fit, just remember that a snug fit is best. If your pool has multiple skimmers, a Pool CuZn must be placed in each skimmer. The Spa CuZn is compatible with spas containing up to 1000 gallons of water. 

If your pool is greater than 15,000 gallons, multiple skimmer baskets with a Pool CuZn disc in each is required. Example: a 30,000 gallon pool must have 2 skimmers with a Pool CuZn in each skimmer to use the Pool CuZn system. If a 30,000 gallon pool has only one skimmer, 2 Pool CuZn discs can’t be stacked on top of each other to achieve desired results (circulation will be too limited). See CuZn’s SP-Series Inline Systems for pools larger than 15,000 gallons that do not have multiple skimming baskets.

While chemical additives are not required in most cases, an oxidizing shock can be used in conjunction our technology to boost performance. The Pool CuZn & Spa CuZn are compatible with Potassium Monopersulfate based shock & we highly recommend you only use that type for best results. We’d recommend adding 50% of what the manufacturer of the Potassium Monopersulfate recommends. The disc does not need to be removed when using a Potassium Peroxymonosulfate based oxidizing sanitizer. When using chlorine based shock, we recommend removing the Pool or Spa CuZn for a 12-24 hour period to let the chlorine dissipate. 

If you wish to use a sanitizer for added protection, we recommend using a hydrogen peroxide based sanitizer, as it won’t cause irritation and will not effect the Pool & Spa CuZn System’s capacity. Again, when using the CuZn system, only a very small amount would be needed. We’d recommend adding 50% of what the manufacturer of the sanitizer recommends. The Pool & Spa CuZn do not need to be removed when using this type of sanitizer. 

If you have been using the Baquacil Chemical Treatment System or another Biguanide based chemical treatment system, please be advised. When switching from Baquacil to another other treatment system (including the Pool & Spa CuZn), certain steps must be taken prior to conversion.

Click below to view FAQs:

FAQs Page 1Pool & Spa CuZn FAQs 2

Patented Reticulated KDF Disc Technology:

Water twists & turns through the maze of copper-zinc fibers, the torturous path ensures the pool water has maximum contact time with media during the recirculating period.

The magic behind the process, is that all the water in the pool comes in contact with the KDF disc on a daily basis. When the pool water comes in contact with the KDF disc, a reaction takes place, forming copper & zinc hydroxides. These controlled releases purify the water, creating a conditioned, stable environment that prevents scale & bacteria growth.

KDF Media has been tested by the national science foundation & received NSF certification standards 42 & 61. Our reticulated KDF is currently used in commercial & residential applications, including the filtration of drinking water. 

MetalOx Reticulated KDF Disc Technology

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