---
product_id: 237798699
title: "FZONE Aquarium Co2 Regulator Aquarium DC Solenoid Bubble Counter and Check Valve Plant Grow DIY CO2 System W21.8 Side Open Cylinder"
brand: "fzone"
price: "22737 kr"
currency: ISK
in_stock: true
reviews_count: 8
url: https://www.desertcart.is/products/237798699-fzone-aquarium-co2-regulator-aquarium-dc-solenoid-bubble-counter-check
store_origin: IS
region: Iceland
---

# 1 bubble/3 sec precision Dual 1.6-inch pressure gauges Leak-proof upgraded sealing FZONE Aquarium Co2 Regulator Aquarium DC Solenoid Bubble Counter and Check Valve Plant Grow DIY CO2 System W21.8 Side Open Cylinder

**Brand:** fzone
**Price:** 22737 kr
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow smarter, not harder — precision CO2 control for the modern aquascaper!

## Quick Answers

- **What is this?** FZONE Aquarium Co2 Regulator Aquarium DC Solenoid Bubble Counter and Check Valve Plant Grow DIY CO2 System W21.8 Side Open Cylinder by fzone
- **How much does it cost?** 22737 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/237798699-fzone-aquarium-co2-regulator-aquarium-dc-solenoid-bubble-counter-check)

## Best For

- fzone enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from hard aluminum alloy with surface spray treatment and knurled knobs for durability and premium feel.
- • **Read at a Glance:** Dual large 1.6-inch gauges display cylinder inner and working pressure clearly—no guesswork needed.
- • **Precision Perfected:** Fine-tune CO2 flow to a flawless 1 bubble every 3 seconds for optimal plant growth.
- • **All-in-One Convenience:** Includes bubble counter with check valve and all installation tools for effortless setup and zero backflow.
- • **Safety Meets Stability:** Newest 12V DC split-type solenoid ensures safer, more reliable operation than traditional AC models.

## Overview

This Aquarium CO2 Regulator features dual large pressure gauges, a high-precision fine-tuning system delivering 1 bubble every 3 seconds, and an upgraded 12V DC solenoid for enhanced safety and stability. Made from durable aluminum alloy with leak-proof sealing, it includes a bubble counter with check valve and all necessary installation tools, making it the ultimate DIY CO2 system for thriving aquatic plants.

## Description

Full description not available

## Features

- Dual Big Gauge. 1.6 inch big dual gauge easy to read your cylinder inner and working Pressure
- Updated Split-Type DC Solenoid. Newest 12 DC split-type solenoid instead AC models, more safe and stable.
- High Precision Structure. This regulator is designed for the aquarium. High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds. Upgraded sealing material avoid any leak
- Bubble Counter and Tools Included. Together with bubble counter, you can read your co2 flow rate. Bubble counter with check valve function, stop water backflow to bottle. All installing tools included, make all goes easy
- Class 1 Manufacturing Technology. Made of hard aluminum alloy, surface spraying treated. Pressure knob and fine tuning knob with knurled

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 14.6 x 7 x 15.2 cm; 0.9 g |
| Item model number | 748323719468 |
| Colour | Black |
| Size | 1 Count (Pack of 1) |
| Number of Items | 1 |
| Quantity | 1 |
| Special features | Durable |
| Specific Uses | Indoor |
| Batteries required | No |
| Batteries Included | No |
| Specification Met | CE |
| Item Weight | 0.9 g |

## Product Details

- **Brand:** FZONE
- **Item weight:** 0.9 Grams
- **Manufacturer:** FZONE
- **UPC:** 748323719468

## Images

![FZONE Aquarium Co2 Regulator Aquarium DC Solenoid Bubble Counter and Check Valve Plant Grow DIY CO2 System W21.8 Side Open Cylinder - Image 1](https://m.media-amazon.com/images/I/61cgmb2Lt6L.jpg)

## Available Options

This product comes in different **Pattern Name** options.

## Questions & Answers

**Q: How do you fit this to a fire extinguisher**
A: remove extinguisher horn with a spanner.
fit regulator to coupling you have just removed the horn from, make sure to use supplied washer, tighten with spanner.

**Q: what connection is this cga320 or w21.8 and is it a uk plug as the listing and photos are conflicting with the advert?**
A: Sorry, it should be W21.8 cylinder.We will update the information ASAP.
And the W21.8 cylinder is suitable for EU plug.

**Q: Hi, i’ve just received this item. it works exactly the same if the solonoid is plugged in or not. is it defective or am i missing something? cheers**
A: Mine is exactly the same. Can the seller please supply valve strip and clean instructions?

**Q: Where do I buy compatible manifold blocks if i want to increase the number of outlets from a single tank of CO2?**
A: Amazon seems a good stockist

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great regulator, fantastic support
*by J***S on 21 May 2025*

It works great, I had an issue with the first unit leaking co2, but the support was fantastic and they immediately replaced the unit. I haven’t had any problems with the new unit provided. I’m very impressed.

### ⭐⭐⭐⭐⭐ Perfect reg, fits fire extinguisher also
*by A***X on 20 March 2025*

Excellent regulator, precise control.Fighter fire extinguisher no problem.You can remove a bubble counter if you don't need two outlets.

### ⭐⭐⭐⭐⭐ Good Product and Good Value for Money-Second Time Around
*by N***. on 19 January 2022*

The initial unit failed to stop the flow of CO2 through the de-energised solenoid valve seat. Fzaqua were prompt to engage, but cleaning advice made not difference and unit replacement as I requested, was lost in translation, taking a week to eventually resolve a series of misunderstandings. Anyway, the replacement unit worked perfectly out of the box, and Fzaqua were prompt to initiate a refund.In summary, a good, value for money product, but I seem to have been unlucky to receive a faulty one initially, but customer services were very fair and attentive, when misunderstandings were resolved. I would recommend the Fzone dual stage regulator based on price, build quality and customer service.

## Frequently Bought Together

- FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder
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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-22*