ISTA CO₂ Bubble Counter and Check Valve – Dual Function CO₂ Flow Monitor & Backflow Preventer

Precision CO₂ Control – Two Functions, One Smart Unit

ISTA CO₂ Bubble Counter and Check Valve is a dual-purpose accessory designed to simplify and safeguard your aquarium’s CO₂ system. It allows aquarists to visually monitor CO₂ flow via bubble count while preventing water from flowing back into the regulator or cylinder.

Its compact form factor makes it suitable for both internal and external setups, and it connects easily to standard CO₂ tubing. Whether you're running a planted tank or a high-tech aquascape, this tool ensures consistent CO₂ delivery and system protection.

Key Features:

• Dual-function design – bubble counter + check valve
• Prevents water backflow into CO₂ equipment
• Clear chamber for easy bubble observation
• Simple installation – no tools required
• Durable construction for long-term use

Specifications:

• Model: ISTA CO₂ Bubble Counter and Check Valve
• Country of Manufacture: Taiwan
• Application: CO₂ flow monitoring and backflow prevention
• Quantity: 1 piece

CO₂ bubble counter, aquarium check valve, ISTA CO₂ accessory, planted tank CO₂ monitor, backflow preventer