---
product_id: 51851807
title: "Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set"
brand: "marimo pet store"
price: "€ 34.63"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.ie/products/51851807-rhinox-stainless-steel-needle-valve-necessary-for-accurate-co2-regulation
store_origin: IE
region: Ireland
---

# Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set

**Brand:** marimo pet store
**Price:** € 34.63
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set by marimo pet store
- **How much does it cost?** € 34.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/51851807-rhinox-stainless-steel-needle-valve-necessary-for-accurate-co2-regulation)

## Best For

- marimo pet store enthusiasts

## Why This Product

- Trusted marimo pet store brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

How reliable is the Rhinox Needle Valve? The practical Rhinox CO2 Regulator Valve is made using durable stainless steel and aluminum alloy and has a special metal grinded surface and flawless interior threading for secure attachment. When used properly, the needle valve should last the lifetime of the Rhinox CO2 Diffuser Set.  How do I install the adjustment valve? Lightweight and ergonomically designed, the CO2 needle valve easily installs into your Rhinox CO2 Diffuser Kit without the use of a tool. The nut lock design effectively locks to the CO2 tube preventing any leakage, misreading or an accident caused by a loose valve.  Is it important to regulate the CO2 in my tank? Specific aquatic plants and pets thrive in specific habitats with unique CO2 and pH levels. Fish inhale oxygen and exhale carbon dioxide while plants absorb CO2 and create oxygen. An excessive or a deficient amount of CO2 in your aquarium water may cause unnecessary stress on your fish and plants. Maintaining an appropriate CO2 level is crucial for a healthy underwater environment and an efficient CO2 diffuser set with a reliable CO2 adjustment valve is the best way to monitor and regulate the CO2 in your water.

## Features

- ✔ REQUIRED TO REGULATE CO2 FLOW ACCURATELY --- In order to properly monitor and adjust the flow of CO2 in your fish tank or aquatic plant environment, a CO2 diffuser set is necessary. An essential part of any functioning diffuser setup is a dependable adjustment valve. The Rhinox CO2 Needle Valve regulates the amount of CO2 that is released into your aquarium water.
- ✔ CORRECT CO2 LEVELS PROMOTE HEALTHY FISH & PLANTS --- All plants have a natural photosynthesis process that requires CO2, which they convert into oxygen. Your fish, shrimp and other aquatic pets need to inhale this oxygen in order to survive and also exhale the carbon dioxide. Monitoring and regulating the amount of CO2 in your aquarium is essential to growing healthy and happy aquatic plants and pets.
- ✔ DURABLE STAINLESS STEEL INTERIOR WITH ALUMINUM ALLOY --- Unlike the plastic versions, this valve is constructed with high-quality, reliable stainless steel and aluminum alloy. The Aquarium C02 Regulator Needle Valve is lightweight and easy to operate. The precise structure of the needle valve features a special metal grinded surface and finely detailed threading for secure closure.
- ✔ QUICK & EASY TO SETUP AND INSTALL --- Ergonomically designed, the CO2 regulator valve quickly and easily installs into your CO2 diffuser set without the use of any additional tool. The practical nut lock design effectively locks the one way valve to the CO2 tube without any worry of coming loose or causing accidents.
- ✔ VARIOUS OTHER USES ALONG WITH AQUARIUMS --- Although the most common use of the versatile Rhinox Needle Valve is the CO2 regulation system in a fish tank or aquatic plant aquarium, but there are many other applications one can consider. It can be used on disposable carbon dioxide equipment, water heater systems, household appliances and measuring instruments.

## Images

![Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set - Image 1](https://m.media-amazon.com/images/I/71iEv8wPx0L.jpg)
![Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set - Image 2](https://m.media-amazon.com/images/I/51-fBvZX+sL.jpg)
![Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set - Image 3](https://m.media-amazon.com/images/I/61R8NAM1e+L.jpg)
![Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set - Image 4](https://m.media-amazon.com/images/I/71lIrWXrEqL.jpg)
![Rhinox Stainless Steel Needle Valve - Necessary for Accurate CO2 Regulation in Solenoid Fish Tanks - Easy to Install - C02 Adjustment Valve - Used with Rhinox CO2 Diffuser Set - Image 5](https://m.media-amazon.com/images/I/71YETRp+QcL.jpg)

## Questions & Answers

**Q: Does this one work with the standard airline tubbing?**
A: Yep I got mine  hooked up that way

**Q: What size co2 cylinder does this take? It looks like 12 or 16 gram but I'm not positive.**
A: Any size

**Q: Can you screw on a bubble counter to this?**
A: No, bubble counters should be in-line

**Q: Can this work with any 20 gram cartridge?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Excellent valve for accurate setting of CO2
  

*by M***G on Reviewed in the United Kingdom on 15 August 2017*

Excellent device. I've used it with a DIY CO2 kit to supplement the original needle valve that came with the kit. The original valve is not precise enough to set up the slow release of gas that I want for my 70ltr tank (1 bubble per 3 seconds). However, the Rhinox valve makes this adjustment easy. I now use the original valve as an ON/OFF valve and leave the Rhinox valve setting alone.Note that the valve is quite heavy, so I've supported the weight by just taping it to the bottle.

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by S***N on Reviewed in the United Kingdom on 17 October 2017*

Nice and sturdy. It is very precise and for diy co2 set up is perfect.

### ⭐⭐⭐⭐⭐ 







  
  
    Top quality
  

*by S***J on Reviewed in the United Kingdom on 5 September 2017*

Good quality heavy duty and adjustment are now very easy with the needle valve.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-22*