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The CO₂ Bubble Counter Model 300-62 (Hose to Hose) is a simple and reliable inline bubble counter designed for use with pressurised CO₂ systems in planted aquariums.
It connects directly between two sections of standard CO₂ tubing, allowing you to visually monitor and adjust the CO₂ bubble rate with ease.
Built from high-clarity acrylic and metal fittings, it offers durability, leak-proof performance, and effortless integration into any aquarium CO₂ setup. Ideal for both hobbyists and professional aquascapers who want a clean, accurate way to measure CO₂ injection.
Key Features:
Hose-to-hose inline design – fits seamlessly between 4/6 mm CO₂ tubing
Accurate CO₂ bubble counting for precise gas flow adjustment
Clear acrylic chamber ensures excellent bubble visibility
Strong metal connectors for a secure, leak-free fit
Compact and lightweight – perfect for any aquarium size
Compatible with all pressurised aquarium CO₂ systems
Quick and easy to install – no tools required
Usage Tips:
Cut your CO₂ tubing and insert the bubble counter inline, keeping it vertical for clear visibility.
Fill the chamber halfway with water or indicator solution.
Slowly adjust your regulator until you achieve the desired bubble rate.
Use a separate check valve downstream to prevent water backflow.
Clean the counter occasionally to maintain visibility and accuracy.
