Aquarium Co2 Valve Regulator Diffuser Bubble Counter Air Pump Accessories. Enhance Your Aquarium with Our Innovative CO2 Bubble Counter, Designed to Elevate Your Fish Tank's Aesthetic and Plant Health. Crafted from Premium Materials, This Durable and Reliable Device Features a Non-return Function to Prevent Backflow and Protect Your Setup from Pressure Changes. Effortlessly Monitor and Regulate Carbon Dioxide Levels, Ensuring Optimal Plant Growth. Available in Both Single-head and Dual-head Options for Customized Use, This Bubble Counter is Easy to Install and Maintain. Features: - Durable and Reliable Construction with High-quality Materials. - Non-return Function Prevents Backflow, Safeguarding Equipment. - Accurately Measures and Supplies CO2 for Plant Vitality. - Simple Installation and Operation for Enhanced Aquarium Aesthetics. - Available in Single-head and Dual-head Models for Flexibility. - Material: Aluminum Alloy & Acrylic - Options: Single Head (3.1 X 0.8 Inches), Double Head (3.2 X 0.8 Inches) - Package Weight: 32-34g Installation: - Single Head: Attach Seal Ring, Add Water, Secure Top Cover, and Connect CO2 Pipe. - Double Head: Add Water, Secure Top Cover, and Connect CO2 Pipe..