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JED 303 Ozone Generator

$279.95

Shipping InfoOrders to USA and Canada will ship within 3 - 4 business days. Orders to other countries will go out within 7 - 10 business days. Typical Transit Times: USA: 2 - 7 days All other countries: 4 - 30 days International shipping and customs logistics may cause delays. Duties, customs, VAT or import taxes may be charged by your municipality and are not included in the shipping price.

Ozone is one of the most efficient ways to sanitize the water in your cold plunge. The JED 303 is the best model I have found for chest freezer cold plunges because they have a built-in pump and do not require plumbing or venturi injectors like hot tub ozone generators. The JED 303 ozone generator can also be used to sanitize water in a stand-alone ice bath or chiller-based cold plunge where you do not want to use a venturi or bypass assembly.

General Specifications

  • Corona discharge (CD) ozone generator
  • Designed for water sanitation in tubs and tanks up to 400 gallons (1,500 liters)
  • Weather resistant case
  • 10′ (3 meters) of blue 1/4″ (6 mm) inner diameter tubing
  • Weighted air stone
  • Check valve
  • Built-in air pump, which can pump ozone into a tub or tank to a depth of 4 feet (1.2 meters) with no plumbing or venturi required

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Description

NOTE: For use in cold plunges, the JED 303 replaced the JED 203 in January of 2023.

Ozone is one of the most efficient ways to sanitize the water in your cold plunge. The JED 303 is the best model I have found for chest freezer cold plunges because they have a built-in pump and do not require plumbing or venturi injectors like hot tub ozone generators. The JED 303 ozone generator can also be used to sanitize water in a stand-alone ice bath or chiller-based cold plunge where you do not want to use a venturi or bypass assembly.

General Specifications

  • Corona discharge (CD) ozone generator
  • Designed for water sanitation in tubs and tanks up to 400 gallons (1,500 liters)
  • Weather resistant case
  • 10′ (3 meters) of blue 1/4″ (6 mm) inner diameter tubing
  • Weighted air stone
  • Check valve
  • Built-in air pump, which can pump ozone into a tub or tank to a depth of 4 feet (1.2 meters) with no plumbing or venturi required

Technical Specifications

  • Dimensions: 9 ½” tall x 8 ½” wide x 4 ½” deep
  • Recommended ambient operating temperature:  40°F – 100°F (4.4°C – 37°C )
  • Operating current: 0.3 amps at 120v
  • Ozone output: 0.05 grams (50 mg) per hour
  • Power consumption: 36 watts
  • Shipping weight: 5 lbs

Shipping, Warranty, & Sales Policy

  • Flat shipping rates to your location will be calculated at checkout
  • This product has a full 1-year manufacturer’s warranty
  • All sales are final. Only order this product if you know you want it. No refunds or cancellations are available.

Installation & Maintenance Help
After you place your order, you will receive two emails: one with a receipt/confirmation and another with resources to help you set up and install your ozone generator. You will have a link to download two pdf files and a link to watch a 30-minute installation video.

I’m available to answer questions (if needed) via Zoom, phone, or email. However, PLEASE read the pdf and watch the video first because they will answer 99% of most questions asked!

Production Lead Time & Shipping
All ozone generators are designed and assembled by JED Engineering in the US. They are new products- never used or refurbished- and will never sit on a shelf for more than 30 days before being shipped. See the above notice for the current production lead and shipping times.

Notice of Use
This product is sold strictly for water treatment applications, which include swimming pools, hot tubs, spas, and cold plunges. Do not use this ozone generator for air purification or any other use outside of water sanitation. The ozone generator should be run for 30 minutes once per day (to start with) and at least 6-8 hours before people or pets are in the area.

Potential health hazard
This product should only be used for water treatment and should be used outdoors or in a well-ventilated area, such as a screened-in porch or garage. Because of potential off-gassing, ozone should not be used indoors.

Manufacturer’s Warranty
JED Engineering, Inc. expressly warrants all products we manufacture to be free from defects in material, workmanship, malfunctions, and failure to perform under normal use and service for one full year from the installation date.

If a defect in material or workmanship becomes evident within this period, JED Engineering will repair or, at JED Engineering’s option, replace the defective unit within a reasonable time without charge for parts, transportation, or labor. In such an event, the warranty duration is extended while the unit is not functioning. This warranty applies to the first retail buyer and to the subsequent system owners. The customer is responsible for the cost of shipping the product back to JED Engineering. JED will cover the costs of repair and return shipping.

Clean Water
There are a few other things that you will need to purchase to ensure that your water stays clean

  1. A pump and filter are required to ensure all your water is contacted with ozone. The filter removed ozonated materials from your water.
  2. A digital timer is strongly recommended. Depending on your use, it may only need to run for 30 – 120 minutes daily to keep your water clean.
    Here is an Amazon affiliate link for a digital timer that I recommend. Any kind of timer will work:
    https://amzn.to/3RBalSa
  3. You will need a shelf or wall to mount the case. It needs to be upright to work correctly.
  4. Two mounting screws are needed.
  5. The tubing should not be installed over the top edge of the tub wall (between the lid) because it creates a gap in the seal, allowing ozone to escape.
  6. The best practice to install the tube is by making a hole through the top of the lid.
  7. Be sure to check ozone compatibility with the tub material or liner you have or plan to install.

Materials Compatibility
OK: Line-X, polyurethane, EPDM pond liners, HDPE, 2-part epoxy sealants (JB Water Weld), LLDPE, PVC, Silicone.

Ozone-Safe Containers:  Ice Barrel 300 and 400, Grizzly coolers

NOT OK: Bare aluminum, rubber, neoprene

MIGHT BE OK: LDPE .Short-term tests have not found issues, but we don’t have any long-term reports yet of daily use.

Questionable: Many stock tanks are made from polyethylene, which has a “B-good” compatibility rating for ozone in water and a “C-Fair” compatibility rating when exposed to ozone in the air. This means the material might have discoloration or degradation after more than 6 to 12 months of use. Compatibility testing is typically done at significantly higher concentrations than what the JED produces, under constant use, for 30 – 60 days.

Polyether (Loctite marine sealant) has not been tested for ozone compatibility. My testing with 3M-5200 marine adhesive resulted in white flakes in the water.

Ambient Operating Temperatures
The JED case is weatherproof and can be installed outside. However, the recommended ambient temperature range is 40°F – 100°F (4.4°C – 37°C). If the ambient temperature drops below freezing, it may not be able to produce sufficient ozone and might be damaged. This damage is not covered under warranty. A heat lamp, grow light, space heater, or incandescent light bulb can be used to heat up the area around the ozone generator.

Ozone Safety
1. For Some people who have chemical sensitivities, COPD, or are recovering from toxic mold exposure, exposure to ozone of any amount might cause issues.

2. How to run a JED 203 safely to sanitize the water in your chest freezer cold plunge:

a. Make sure your setup is in a well-ventilated area

b. Ensure that the gasket on the chest freezer lid makes a tight seal

c. Ensure that the ozone tube is securely connected to the ozone generator (use a hair dryer or heat gun if needed to push it farther up the connection)

d. Run the ozone generator only once per day for the shortest amount of time possible (30 minutes up to no more than 2 hours)

e. Run the ozone generator on a timer and have it turn on at least 6-8 hours before people or animals are in the area.

f. If you open the lid and smell ozone, step away for a few minutes to let it dissipate. Turn on a fan if needed.

g. Do not install the ozone generator inside of a cabinet, box, or other enclosure. Fresh air is needed for it to work correctly.

Which Voltage to Order

  • If you live in the USA, Canada, Mexico, Puerto Rico, or other countries with 110v/120v outlets, order the 120v model.
    This model comes with a 3-prong plug that fits into standard grounded outlets.

  • If you live in Australia, Israel, New Zealand, the UK, or other countries that use 220v/240v outlets, order the 240v model. This model comes with three bare wires. If you have outlets in your home that look like any of the below (or are different than the 120v pictured above), order the 240v model.
    Here are example outlets- yours might look different.

 

 

 

 

 

 

 

 


You will need to buy a 3-prong (grounded/earthed) plug to attach to the bare wires.  These plugs are available online or at local hardware stores.

Here is an example of an Australian power plug. You can find them on Amazon and Bunnings. The three bare wires on the JED will typically connect to the plug using only a screwdriver.

Why is the JED 203 Ozone Generator No Longer Recommended?

It is important to make changes in the DIY space as we learn new best practices. The JED 203 ozone generator was used with DIY cold plunges from 2017 – 2022. It worked great but was designed for water purification in hot tubs and spas up to 800 gallons. This was way more ozone than needed for a typical DIY cold plunge containing 50 – 120 gallons. Because we care about your health and safety, reducing the potential off-gassing ozone is important, and the JED 303 was introduced. The JED 303 ozone generator works just as well as the JED 203 and has much less risk of off-gassing. The JED 203 ozone generator is no longer carried in my store.

Additional information

Weight 5 lbs
Dimensions 13 × 9 × 8 in
Voltage

120v (Ex. USA, Canada, Mexico, Puerto Rico), 240v (UK, Australia, Israel, most other countries in the world)

Dropshipper

Refund Policy

Only buy this product if it is part of your plan, and you know you want it. All orders are final, and no refunds or cancellations will be given.