ZRDR R101 CO2 Pressure Reducing Regulator

Precision-engineered for aquascaping enthusiasts needing stable CO2 delivery.

This compact dual-gauge CO2 regulator simplifies fine-tuning with a visible bubble gauge, filtration, and inverse valve for added safety. Its aluminum alloy body is built to last in humid environments. Perfect for those starting with pressurized CO2 systems or upgrading from basic setups, the R101 balances performance and affordability in one sleek unit.

Usage Instructions:

• Attach regulator to compatible CO2 cylinder (check for W21.8, CGA320 threading)
• Connect tubing and bubble counter to inline filter and check valve
• Regulate bubble frequency manually to 1 bubble every 2–3 seconds

Key Benefits:

• Dual pressure gauges for live tank pressure and output monitoring
• Filtration bubble counter ensures clean and accurate CO2 injection
• Inverse valve adds protection against backflow
• Compact size fits neatly under or beside aquarium tanks

Specifications:

• Material: High-purity aluminum alloy
• Gauge Style: Dual pressure display
• Outlet Nut: M10×1
• Pressure Range: 0.5MPa to 15MPa inlet; 0.3–0.4MPa outlet
• Connector Options: W21.8 / CGA320 / G1/2 / G5/8 / M22
• Color: Silver
• Country of Manufacture: China

CO2 regulator for aquarium: Dual gauge system to regulate and monitor gas pressure.
Filtration bubble counter: Ensures purity and visual flow control.
Inverse valve safety: Blocks back pressure to protect internal components.
Aluminum CO2 controller: Lightweight and rust-resistant design.
Multi-connector compatibility: Fits most cylinder types worldwide.