InlineO3™ Ozone Injector

Tired of the hassle of complicated plumbing needed just to add ozone to your cold plunge? We’ve got you covered.

Introducing the Plunge Crafters InlineO3™ — a compact, high-efficiency ozone venturi injector designed specifically for DIY cold plunge systems. It seamlessly connects inline with your existing plumbing, eliminating the need for a bypass and preserving full water flow.

Cleaner water. Easier installs. Zero compromise.

Key Benefits:

• Direct Inline Integration – No bypass required, just screw it in 3/4" port and go.
• Optimized for Cold Plunges – Designed to work perfectly with 3/4"  NPT plumbing systems.
• Plug-and-Plunge Simplicity – Pairs effortlessly with our Ambohr SPA-124 Ozone Generator for fast, effective ozone delivery
• Built for Performance – Maintains optimal flow rate while maximizing ozone injection efficiency.

Specifications:

• Fits the full line of Plunge Crafters cold plunge tubs and any tub that has 3/4" NPT tub ports or bulkheads
• Compatible with 1/2" tub ports by using our 1/2" male to 3/4" female adapter
• Connects easily to 3/4" ID hoses or push-to-connect plumbing (depending on model)
• Designed for installation on tub inlet port 

Have questions? Reach out — we’re here to help you build the ultimate plunge setup.

We strive to process and ship all orders received before 3PM CST the day the order was received. Orders received after 3PM CST will be shipped the next business day. You will receive an email notification with tracking information once your order has been shipped.

Check out our Shipping Policy for additional details.

We stand behind the quality and performance of every Plunge Crafters product. If for any reason you're not completely satisfied within 30 days of delivery, simply contact our support team to return the product in its original condition and packaging. We’ll issue a full refund—no questions asked.

How it works:

• Submit your return request within 30 calendar days of receiving your order.
• Return the unused product in its original packaging.
• Once received and inspected, your refund will be processed within 5–7 business days.