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7-4025 Mazzei Injector #584K (Black), 3/4"HB for Hot Tubs

  • Mazzei #584K (DEL Ozone PN 7-4025) for spas and hot tubs is black with 3/4" HB
  • Mazzei #584K (DEL Ozone PN 7-4025) with 3/4" HB has HOSE BARBS
0.25 LBS
IN STOCK - ships immediately
Calculated at checkout

Product Description

Spas stay clean and safe with a Mazzei Injector and a DEL Spa Ozone Generator. And using a Mazzei Injector eliminates harmful ozone off-gas known to decrease the life of spa covers and pillows.

Mazzei Injector #584K Specifications:

  • Black, Kynar
  • Ozone- and weather-resistant for longer lifespan
  • 3/4" Hose Barbs for easy installation into flexible plumbing
  • Without built-in Check Valve
  • Without O'ring (use Teflon tape)
  • DEL Ozone Part Number is 7-4025
  • Not the most common injector used in hot tubs due to the fact that it is the most restrictive Spa Ozone Injector; it works great on hot tubs with low flow rates

This Mazzei Injector #584K (DEL Ozone PN 7-4025) is designed for spas and hot tubs.  It is black with 3/4" HOSE BARBS.  

How does ozone get IN the spa water?  Most hot tubs and spas use a Mazzei Injector which is connected to your spa equipment.  When the ozone generator is operating, ozone is automatically introduced into the water where it kills viruses, bacteria, yeast, mold and mildew.



Watch this great DEL Ozone video to see a Mazzei Injector working with DEL's MCD-50 and Ozone Supply Check Valve (7-1140-01).

Using an integrated system with intelligent design, the MAZZEI system components work together to optimize performance by raising the ozone concentration while lowering the gas-to-liquid ratio.

Key Features of MazzeiTechnology:

  • Ozone Concentration – Concentration and solubility are directly proportional so that higher ozone concentrations promote the transfer of more ozone into solution
  • Gas-to-Liquid Ratio – A lower gas to liquid ratio (Vg/Vl) allows for greater ozone mass transfer efficiency
  • Water Pressure – Higher pressure yields increases in ozone solubility
  • Water Temperature – Higher temperature reduces solubility, but increases the chemical reaction rate
  • Mixing – Intense, forceful mixing allows for the rapid renewal of the gas-liquid interface, increasing the mass transfer rate and the reaction rate

Some spas do not have an ozone injector; ozone is injected through a jet.  Bubbles should be fine and tiny.  If they are not, your system may need fine-tuning.  

Here are signs ozone is not getting into the water properly:  

1) Ozone odor is strong when you lift the cover
2) Spa water looks, smells and feels bad
3) Ozone bubbles are too big.  Bubbles should be like champagne bubbles

If your spa ozone goes through the spa jets and installing an injector is not an option, you may be able to install a Mazzei LGM.

If you have a Hot Springs Spa, and a FreshWater Ozone Generator, chances are this is the injector for you.

RESOURCE CENTER | Download the following here:
How Does Ozone Get Into Hot Tub and Swimming Pool Water?  It's All About the Injector
How to Size the Right Mazzei Injector for Your Hot Tub or Spa
How to Clean a Spa Injector

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Product Reviews

  1. Outstanding service 5 Star Review

    Posted by on 11th May 2016

    Product was delivered very quickly to New Zealand, and Jen was amazing at responding to my questions --she truly cares about the customer. Thanks Jen!

  2. Great Product 5 Star Review

    Posted by on 7th Sep 2015

    Works Great

  3. Why great service is tied to great products 5 Star Review

    Posted by on 17th Sep 2013

    We are often told " Ask the expert"! We do this hoping to get the right info to make an informed decision. Jen goes out of her way to make sure you love your hottub and stays with you until the problem is solved. Do you know how rare this service is? I got the right product for the right application from the right person at a great price.
    If you truly love your hot tub then you will love Jen and you will make this a regular place to do business!

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