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TNB Naturals - The CO₂ Enhancer

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The CO₂ Enhancer bottle by TNB Naturals is a natural generator that is both effective and safe for CO₂ supplementation in grow rooms and grow tents.

In an area of 3m/sq. The Enhancer can reach 1200 PPM for up to 2 weeks.

To activate it, simply add 1 litre of warm water, screw on the the lid, remove the sticker, then cover the small hole with your thumb and give the bottle a good shake.

The Enhancer works through the process of photosynthesis and produces CO₂ for your plants within minutes of activation. 

When growing indoors hydroponically or in coco plants can run out of available co2 pretty quickly, by increasing the CO₂ concentration in the room the plants can keep absorbing light and growing to their maximum potential. Some growers report yield increase between 20-40%

For best results, shake it daily in a 3m x 3m x 3m grow space and every other day in a 1.5m/sq. Its user-friendly design and lack of heat or additional equipment needed, makes The CO₂ Enhancer the future of CO₂ production.

Have a read up on our blog about CO₂ if you'd like to learn more.


*All orders are dispatched in unmarked boxes to maintain your privacy.*


Orders are shipped via Australia Post or Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email to obtain a quote. 

Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be organised.

We reserve the right to charge for any redeliveries if they occur. You are welcome to call us if special arrangements need to be made.  

Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.


All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.

Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should these costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees.

We will notify you if this rare situation occurs.



All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.

Please allow at least 24 hours for payments to clear.


You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.

All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.


We comply with all necessary restrictions and guidelines when shipping any products classified under the Dangerous & Prohibited Goods & Packaging Post Guide.

If, for any reason in compliance with these guidelines, we are unable to fulfil an order a refund will be issued immediately.