---
product_id: 237798699
title: "Aquarium Co2 Regulator Aquarium DC Solenoid Bubble Counter and Check Valve Plant Grow DIY CO2 System W21.8 Side Open Cylinder"
brand: "fzone"
price: "KSh28753"
currency: KES
in_stock: true
reviews_count: 13
category: "Fzone"
url: https://www.desertcart.co.ke/products/237798699-aquarium-co2-regulator-aquarium-dc-solenoid-bubble-counter-and-check
store_origin: KE
region: Kenya
---

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

**Brand:** fzone
**Price:** KSh28753
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquatic jungle with precision CO2 control—because your plants deserve the best!

## Quick Answers

- **What is this?** 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?** KSh28753 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/237798699-aquarium-co2-regulator-aquarium-dc-solenoid-bubble-counter-and-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

- • **Dual Big Gauges:** Easily monitor both cylinder inner and working pressure with large, crystal-clear 1.6-inch gauges.
- • **Next-Gen DC Solenoid:** Safer, more stable 12V DC split-type solenoid replaces outdated AC models for reliable automation.
- • **Precision CO2 Control:** Fine-tune your aquarium’s CO2 flow to a perfect bubble every 3 seconds for optimal plant growth.
- • **Durable Aluminum Build:** Crafted with hard aluminum alloy and surface spray treatment for long-lasting, corrosion-resistant performance.
- • **All-in-One Installation Kit:** Includes bubble counter with check valve and all necessary tools for effortless setup—no extra purchases needed.

## Overview

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

## Description

Free delivery and returns on eligible orders. Buy FZONE Aquarium Co2 Regulator Aquarium DC Solenoid Bubble Counter and Check Valve Plant Grow DIY CO2 System W21.8 Side Open Cylinder at desertcart UK.

Review: Ideal regulator. - Brilliant regulator. Does what it should. No leaks that I can see. Easy to set up and get co2 running on any tank.
Review: Great valves - Working well just what is needed

## 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 |
|---------------|-------|
| ASIN | B07QFT69P8 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 18,185 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 5 in CO2 Systems |
| Colour | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,996) |
| Date First Available | 24 May 2019 |
| Item Weight | 0.9 g |
| Item model number | 748323719468 |
| Number of Items | 1 |
| Product Dimensions | 14.6 x 7 x 15.2 cm; 0.9 g |
| Quantity | 1 |
| Size | 1 Count (Pack of 1) |
| Special features | Durable |
| Specific Uses | Indoor |
| Specification Met | CE |

## Product Details

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

## Images

![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)

## 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

### ⭐⭐⭐⭐⭐ Ideal regulator.
*by M***H on 21 December 2025*

Brilliant regulator. Does what it should. No leaks that I can see. Easy to set up and get co2 running on any tank.

### ⭐⭐⭐⭐⭐ Great valves
*by A***S on 17 November 2025*

Working well just what is needed

### ⭐⭐⭐⭐ Fitment
*by D***N on 29 September 2025*

Fitted straight on to a standard CO2 bottle. Does the job.

## Frequently Bought Together

- FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder
- FZONE Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit
- Fzone Neo CO2 Diffuser with Customized Ceramic from South Korea(L-24mm)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.ke/products/237798699-aquarium-co2-regulator-aquarium-dc-solenoid-bubble-counter-and-check](https://www.desertcart.co.ke/products/237798699-aquarium-co2-regulator-aquarium-dc-solenoid-bubble-counter-and-check)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-01-31*