ISTA I533 Solenoid CO₂ Regulator – Precision Control for Planted Aquariums

The ISTA I533 Regulator is engineered for aquarists who demand precision and safety. Featuring a German-made solenoid, this regulator allows automated CO₂ injection when connected to a timer or pH controller.

Its stainless steel construction resists rust and ensures long-term durability. The dual gauge system provides real-time feedback on both internal cylinder pressure and output pressure to the aquarium. A built-in safety valve prevents over-pressurization, and the hand-tighten design makes installation effortless.

Usage Instructions:

• Attach regulator to compatible Face-Side CO₂ cylinder
• Connect tubing and bubble counter
• Use timer or pH controller to automate solenoid
• Install check valve to prevent water backflow

Key Benefits:

• German solenoid ensures reliable CO₂ shutoff
• Dual gauges for accurate pressure monitoring
• Rust-resistant stainless steel body
• Tool-free installation with hand-tighten design
• Safety valve for added protection

Specifications:

• Model: I-533
• Material: Stainless steel + precision solenoid
• Weight: 730g
• Dimensions: 20.3 x 13.5 x 14 cm
• Country of Manufacture: Taiwan

Descriptions:

• ISTA Solenoid Regulator: Electromagnetic valve for automated CO₂ control
• Twin Gauge CO₂ Controller: Monitors both cylinder and output pressure
• Face-Side Cylinder Compatible: Designed for upright CO₂ cylinders
• Rust-Resistant Build: Stainless steel body for durability
• Safety Valve: Prevents over-pressurization accidents