--- product_id: 551310210 title: "Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Single Head" brand: "clscea" price: "€ 29.80" currency: EUR in_stock: true reviews_count: 5 category: "Clscea" url: https://www.desertcart.pt/products/551310210-aquarium-co2-bubble-counter-with-built-in-check-valve-co2 store_origin: PT region: Portugal --- # Built-in check valve prevents back-siphoning Screw connection for universal fit Durable aluminum alloy & PC construction Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Single Head **Brand:** clscea **Price:** € 29.80 **Availability:** βœ… In Stock ## Summary > πŸ’¨ Count on clarity, control your CO2 flow like a pro! ## Quick Answers - **What is this?** Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Single Head by clscea - **How much does it cost?** € 29.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/551310210-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 - β€’ **Trusted Quality:** Stringent quality control guarantees reliability, backed by glowing user reviews. - β€’ **Effortless Setup:** Screw-on design compatible with most CO2 needle valves for quick installation. - β€’ **Robust Durability:** Aluminum alloy ends and pressure-resistant PC cylinder ensure long-lasting performance. - β€’ **Precision Monitoring:** Accurately count CO2 bubbles to maintain optimal aquarium health and plant growth. - β€’ **Leak-Proof Confidence:** Integrated high-quality check valve eliminates backflow, protecting your CO2 system. ## Overview The Clscea Aquarium CO2 Bubble Counter features a screw connection compatible with 4/6mm tubing and most needle valves, a built-in check valve to prevent back-siphoning, and a durable design using aluminum alloy and pressure-resistant PC materials. It enables precise CO2 flow monitoring to maintain a healthy aquarium environment, offering easy setup and reliable long-term use. ## Description A bubble counter is an important accessory in a CO2 system. Choosing a premium accessory is vitally important. INSTRUCTION: 1 Screw the bubble counter onto the needle valve. 2 Unscrew the top cap and fill 3/4 with water, firmly screw the top back on. 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 the regulator's needle valve to adjust the flow rate. 5 Count the number of bubbles going through the bubble counter and adjust the flow accordingly. PACKAGE INCLUDED: 1 x Bubble Counter Review: Only Bubble Counter I would recommend! - I LOVEEE this. The best part is that it has the built-in check valve, so you don’t have to buy one separately, which just makes everything way easier and cleaner to set up. It works exactly how it’s supposed to, and the bubble counting is clear and consistent. The quality also feels really solid, not cheap at all, so I feel comfortable using it long-term with my setup. Honestly just super convenient and one less thing to worry about when setting up CO2. Definitely recommend if you want something simple and efficient. Review: Works great - Well made. I have 1 from a different brand and the threads stripped out fast and it leaked water back into my co2 tank. This 1 is working great so far. ## Features - Screw connection, compatible with many CO2 needle valves. Easy to set up. - Built-in high-quality check valve to prevent back-siphoning. 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 ΒΎ with water before use. Compatible with 4/6mm (3/16" inner diameter) Co2 tubing. - Quality inspection, rather than random inspection! We are serious about quality control and buyer experience! If there are any questions, suggestions or ideas, please feel free to contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08YN78W8C | | Brand | Clscea | | Brand Name | Clscea | | Customer Reviews | 4.6 out of 5 stars 125 Reviews | | Manufacturer | Clscea | | Number of Items | 1 | | Pet Type | Fish | | Unit Count | 1.0 Count | | Unit count | 1.0 Count | ## Images ![Aquarium CO2 Bubble Counter with Built-in Check Valve for CO2 Generator Regulator, Single Head - Image 1](https://m.media-amazon.com/images/I/61aAT2i6U0L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Only Bubble Counter I would recommend! *by J***A on 13 April 2026* I LOVEEE this. The best part is that it has the built-in check valve, so you don’t have to buy one separately, which just makes everything way easier and cleaner to set up. It works exactly how it’s supposed to, and the bubble counting is clear and consistent. The quality also feels really solid, not cheap at all, so I feel comfortable using it long-term with my setup. Honestly just super convenient and one less thing to worry about when setting up CO2. Definitely recommend if you want something simple and efficient. ### ⭐⭐⭐⭐⭐ Works great *by A***. on 18 April 2026* Well made. I have 1 from a different brand and the threads stripped out fast and it leaked water back into my co2 tank. This 1 is working great so far. ### ⭐⭐⭐⭐⭐ Works great and easy to install *by F***R on 11 October 2025* Works great and easy to install. Added to Fzone CO2 generator as 2nd output --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/551310210-aquarium-co2-bubble-counter-with-built-in-check-valve-co2](https://www.desertcart.pt/products/551310210-aquarium-co2-bubble-counter-with-built-in-check-valve-co2) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-23*