--- product_id: 557066420 title: "Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head" brand: "clscea" price: "4.90 DT" currency: TND in_stock: false reviews_count: 5 url: https://www.desertcart.tn/products/557066420-aquarium-co2-bubble-counter-with-built-in-check-valve-co2 store_origin: TN region: Tunisia --- # Transparent PC cylinder for precise bubble count Built-in check valve prevents back-siphoning Aluminum alloy ends for durability Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head **Brand:** clscea **Price:** 4.90 DT **Availability:** ❌ Out of Stock ## Summary > 💨 Bubble up your aquarium game with precision and protection! ## Quick Answers - **What is this?** Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head by clscea - **How much does it cost?** 4.90 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/557066420-aquarium-co2-bubble-counter-with-built-in-check-valve-co2) ## Best For - clscea enthusiasts ## Why This Product - Trusted clscea brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Backflow Protection:** Integrated high-quality check valve safeguards your regulator and solenoid from damage. - • **Robust Build Quality:** Aluminum alloy ends and pressure-resistant PC cylinder ensure long-lasting durability. - • **Universal Compatibility:** Fits all standard 4/6mm CO2 tubing for seamless integration with any system. - • **Precision Flow Monitoring:** Accurately track CO2 bubbles to maintain optimal aquarium health. - • **Effortless Setup & Maintenance:** Easy inline screw connections and clear water-fill instructions for quick installation. ## Overview This Aquarium CO2 Bubble Counter features durable aluminum alloy ends and a transparent, pressure-resistant PC cylinder for accurate bubble monitoring. Its built-in check valve prevents back-siphoning, protecting your CO2 regulator and solenoid. Compatible with standard 4/6mm tubing, it offers easy inline screw connections and a simple water-fill setup, making it an essential, reliable accessory for maintaining a healthy, thriving aquarium. ## Description A bubble counter is an important accessory in a CO2 system. Choosing a premium accessory is vitally important. INSTRUCTION: 1. Unscrew the top cap and fill 3/4 with water, firmly screw the top back on. 2. Unscrew the compression collar from the bottom of the bubble counter, feed tubing through the collar, and firmly tighten to hold the tubing in place. 3. Unscrew the compression collar from the top of the bubble counter, feed tubing through the collar, and firmly tighten to hold the tubing in place. 4. Use suction cups to hold the bubble counter in place. PACKAGE INCLUDED: 1 x Bubble Counter Review: This is a great bubble counter. All of the pictures show it connected upside down though. It only works if the bubble stem inside is set on the CO2 end. Review: I bought 4 and I only had them for a day at the time of writing this review. Out of the 4 I purchased, one of them has a defective check valve. The replacement policy is nice and for 10 bucks id say it was worth the risk. Definitely is a nice short term option if you are looking to save up for a better co2 kit. Paired it with a fluval 45g co2 kit. ## Features - Inline screw connection, connects to the tubing at both ends, suitable for all CO2 systems. - Built-in high-quality check valve to prevent back-siphoning and protect your regulator and solenoid. - The bubble counter is designed to accurately monitor air-flow rate, it helps to keep and maintain a healthy aquarium. - DURABLE: Both ends are made of aluminum alloy to avoid softening or breaking; The middle transparent cylinder is made of PC, injection molding mode, more robust, safer and more pressure-resistant than acrylic or other materials. - It needs to be filled ¾ with water before use. Compatible with 4/6mm (3/16" inner diameter) CO2 tubing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09D2LCVSY | | Batteries Included | No | | Color | double-head | | Customer Reviews | 4.2 4.2 out of 5 stars (42) | | Date First Available | 23 October 2021 | | Item Weight | 32 g | | Material Composition | Metal & PC | | Package Dimensions | 8.61 x 2.9 x 2.69 cm; 32 g | | Quantity | 1 | | Special Features | Durable, Easy to Use | | batteries required | No | ## Images ![Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head - Image 1](https://m.media-amazon.com/images/I/61E6bR9Z91L.jpg) ![Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head - Image 2](https://m.media-amazon.com/images/I/71k7UoB4R-L.jpg) ![Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head - Image 3](https://m.media-amazon.com/images/I/61hgAGREhRL.jpg) ![Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head - Image 4](https://m.media-amazon.com/images/I/61O1ac8+FtL.jpg) ![Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Double-Head - Image 5](https://m.media-amazon.com/images/I/61eYLKRSR2L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***N on 14 October 2025* This is a great bubble counter. All of the pictures show it connected upside down though. It only works if the bubble stem inside is set on the CO2 end. ### ⭐⭐⭐⭐ Review *by A***. on 27 August 2024* I bought 4 and I only had them for a day at the time of writing this review. Out of the 4 I purchased, one of them has a defective check valve. The replacement policy is nice and for 10 bucks id say it was worth the risk. Definitely is a nice short term option if you are looking to save up for a better co2 kit. Paired it with a fluval 45g co2 kit. ### ⭐⭐⭐⭐⭐ Review *by N***K on 15 July 2024* They work well enough. I have mine connected to a splitter off my single stage co2 regulator so that I can split one regulator into 2 aquariums without buying an expensive dual output regulator. They hold onto the lines well and seem to act as a decent check valve. --- ## 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.tn/products/557066420-aquarium-co2-bubble-counter-with-built-in-check-valve-co2](https://www.desertcart.tn/products/557066420-aquarium-co2-bubble-counter-with-built-in-check-valve-co2) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-04*