ZRDR R103 Solenoid CO2 Regulator

Designed for planted tank owners who want intuitive control and dependable CO2 flow.

The R103 features a mini-format regulator with a single gauge display, letting you monitor outlet pressure effortlessly. Its built-in solenoid valve uses cool-touch technology to reduce heat during operation, while the integrated bubble counter offers filtration and an inverse valve to prevent backflow. Crafted from high-purity aluminum, the regulator is rust-resistant and robust—perfect for humid environments near aquariums.

Usage Overview:

• Mount regulator to CO2 cylinder with compatible threads: W21.8, G1/2, G5/8, M22, CGA320
• Connect tubing to bubble counter with check valve protection
• Set bubble rate manually for 2–3 second intervals

Key Features:

• Single pressure gauge for outlet pressure control
• Pro-class solenoid valve with cool-touch operation
• Advanced bubble counter with filtration and inverse valve
• Compact regulator body made from high-purity aluminum
• Easy to install, fits most standard CO2 cylinders worldwide

Specifications:

• Inlet Pressure: 0.5MPa to 15MPa
• Outlet Pressure: 0.3MPa–0.4MPa
• Material: Aluminum Alloy
• Solenoid Voltage: AC 100–240V input; DC 12V output
• Connector Threads: W21.8 / G1/2 / G5/8 / M22 / CGA320
• Outlet Nut: M10×1
• Color: Silver
• Country of Manufacture: China

Bubble counter: Regulate your CO2 flow rate with precision.
Cool-touch solenoid: Prevents overheating during extended use.
Aluminum body: Lightweight and resilient in humid conditions.
Compatible threading: Fits diverse regional CO2 tanks for global users.