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# DIY CO2 Generator O-rings

By [Tropiscape Aquatics (@Tropiscape)](https://listium.com/@Tropiscape)

84 views · 0 likes · 0 followers  
Published 6 December 2024 · Updated 6 December 2024

Category: pets / aquariums

List of O-rings and Gaskets used for DIY CO2 generators for planted aquariums.

These are used for fixing and preventing CO2 leaks. If you want to learn how to fix leaks, check out my short tutorial video!

https://youtu.be/DsTH41vM3uo

## Items

### 1. [27.8 mm ID, 35 mm OD, 3.6 mm Width](https://listium.com/@Tropiscape/118313/diy-co2-generator-o-rings/0/278-mm-id-35-mm-od-36-mm-width)

Item ID: `0`

- BUY: Link
- Image: ![Image](https://img.listium.com/images/width=800,height=800,fit=scale-down,format=webp/l/hce1pgygpmgbfr015mof.jpg)
- Price: $16.31
- Note: Pack of 25
- Rubber Type: Nitrile

### 2. [27mm OD 23mm ID 2mm Width](https://listium.com/@Tropiscape/118313/diy-co2-generator-o-rings/1/27mm-od-23mm-id-2mm-width)

Item ID: `1`

- BUY: Link
- Image: ![Image](https://img.listium.com/images/width=800,height=800,fit=scale-down,format=webp/l/bczyrecnaj7kuy9ckclh.png)
- Price: $6.50
- Note: Pack of 10
- Rubber Type: Nitrile

### 3. [7mm OD 3mm ID 2mm Width](https://listium.com/@Tropiscape/118313/diy-co2-generator-o-rings/2/7mm-od-3mm-id-2mm-width)

Item ID: `2`

- BUY: Link
- Image: ![Image](https://img.listium.com/images/width=800,height=800,fit=scale-down,format=webp/l/xztcsf99qf2ougj3leru.png)
- Price: $6.99
- Note: Pack of 200
- Rubber Type: Nitrile

### 4. [18mm OD, 12mm ID, 3mm Width Gasket](https://listium.com/@Tropiscape/118313/diy-co2-generator-o-rings/3/18mm-od-12mm-id-3mm-width-gasket)

Item ID: `3`

- BUY: Link
- Image: ![Image](https://img.listium.com/images/width=800,height=800,fit=scale-down,format=webp/l/htumkessf0aithgurisv.png)
- Price: $6.49
- Note: Pack of 20. This is for the filter compartment on the regulator
- Rubber Type: Silicone

### 5. [26mm OD, 22.2mm ID, 1.9mm Width](https://listium.com/@Tropiscape/118313/diy-co2-generator-o-rings/4/26mm-od-222mm-id-19mm-width)

Item ID: `4`

- BUY: Link
- Image: ![Image](https://img.listium.com/images/width=800,height=800,fit=scale-down,format=webp/l/zjxplnkputctboqahizn.png)
- Price: $5.59
- Note: Pack of 10. These are a cheaper alternative. However, nitrile is preferred.
- Rubber Type: Silicone