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MCD-50U NEXT GENERATION Spa Ozonator by DEL Ozone up to 1,000 Gallons (Universal Voltage)

  • MCD-50U Spa Ozone Generator is Universal Voltage
  • Mini Ozone Plug
3.00 LBS
Calculated at checkout
Minimum Purchase:
1 unit(s)
Maximum Purchase:
2 unit(s)

Product Description

The MCD-50U is [slowly] being discontinued.  We currently only have the MINI OZONE PLUGS in stock, and are waiting to hear if the AMP Plugs are still available.  All other models are gone!  But, we do have the MCD-50U Renewal Kit

Need a new Spa Ozone Generator?  We are EXCITED to announce the arrival of this superior unit!  Check out the DEL Ozone Spa unit for spas to 1,000 gallons!

The MCD-50U Spa Ozonator for hot tubs and spas gives you crystal clear water with 60-90% less chemicals.  Easily handles spas and hot tubs up to 1,000 gallons.  DEL's MCD-50U has the longest lifespan of any spa ozone generator on the market, lasting 3-5 years, and it is RENEWABLE*!

MCD-50U Spa Ozone Generator specifications: 

  • 120-240V, 50-60Hz (Auto-Sensing!)
  • Shipping Weight:  3 lbs
  • 8.6"H x 6.1"W x 2.8"D
  • Ozone Output: 50 mg/hr
  • Listings:  UL, cUL, CE

The MCD-50U (Dual Voltage) Spa Ozone Generator includes: 

*Get your MCD-50U Renewal Kit with your purchase of DEL's MCD-50U and get $10 off when you use Coupon Code:  "MCD-50U Renew"

Why use ozone in spas?  Ozone is the most powerful spa sanitizer, 200 times more powerful than chlorine at killing viruses and bacteria.  Aiding in the filtration process, ozone clears up cloudy spa water and significantly reduces the need for bromine, chlorine, spa shock and other spa chemicals.
RESOURCE CENTER | Download the following here:

MCD-50U Spa Ozonator Brochure
MCD-50U NEXT GENERATION Installation and Operations Manual
How to Install a Spa Ozone Generator (BLOG Post)
How Does Ozone Get Into Hot Tub and Swimming Pool Water? (BLOG Post)

DEL Ozone has been supplying hot tub and spa manufacturers with ozone for over 20 years.  If you have a portable hot tub, chances are it already has a DEL Ozonator.

JANUARY 2016:  DEL Ozone converted their ORIGINAL MCD-50 Spa Ozone Generator from using the 5-1307-01 CD Ozone Electrode to using the ultra-modern APG Ozone Module.  One of the best features of this update is that the MCD-50 is now Universal Voltage and Hertz!  120V, 240V, 50Hz, 60Hz - it does it all!

Write your own product review

Product Reviews

Showing reviews 1-4 of 18 | Next

  1. immediate improvement! 5 Star Review

    Posted by on 19th Sep 2020

    Began having cloudy problem a month ago. Tried all the Usual chemical treatments to clear it up but nothing worked. Changed out the water but still cloudy in very short order. Flushed out and scrubbed down spa twice again, still cloudy within a week. Finally checked the ozone unit and noticed it was consumed. Flushed water once again and replaced iunit with The newer MCD-50. Immediately noticed much clearer water! Learned my lesson, check ozone unit operation more often!

  2. MCD-50U 5 Star Review

    Posted by on 4th Nov 2018

    It is difficult to review as I have never had a competitor's ozone system.
    I have been very satisfied with Del Ozone.
    And, Del Ozone does stand behind their product.

  3. Fan of MCD 50U 5 Star Review

    Posted by on 15th Oct 2018

    I like using ozone in my hot tub. It helps sanitize the hot tub, while using fewer chemicals. It also makes the water crystal clear, and the hot tub smells fresh and clean. Ozone gives the hot tub a much more "appealing" atmosphere, making you want to get in it, not cringe when you do. The BEST "thing" about an MCD 50U,though is the Delzone support personnel. Hot tubs are finicky and fickle. If you have one, you know that it has mind of its own. Sometimes it takes a team to figure out how to fix whatever isn't right. I am proud to have all of the folks at Delzone and at Love Your Hot Tub on my team. They care about my situation, they take an interest in me, and even more these guys and gals are experienced knowledgeable and savvy! They KNOW what they are talking about! You can trust them. In this day of "do it yourself or pay through the nose," it is wonderful to have this strong team to help you solve a problem. You don't have to go it alone!

  4. MCD-50U 1 Star Review

    Posted by on 2nd Jun 2018

    Mine failed yesterday (6/1/18). I bought it from here in March 18. So, didn't make the 3 month point. I'm not sure which design I have. It was manufactured in Feb 18..It stopped producing the bubbles and no lights. Checked for power - good. Transformer was very warm. No heat sink on the transformer even though there are electrical components on board that should have thermal cooling. When it functioned, it worked great - I think the new redesign needs redesigned! I ordered the refurb kit.

    Note: DEL Ozone is replacing this premature-failed unit...although it's rare to have a failed unit manufactured by DEL, it does happen! Thanks to DEL for always taking good care of our customers.

Showing reviews 1-4 of 18 | Next