The Dymax Professional Regulator RX – 123 is a specialized dual-stage regulator designed to provide safe, precise, and stable carbon dioxide injection for both freshwater planted tanks and marine aquariums.

Key Features and Design:

• Solid Aluminium Body: Built from premium, lightweight aluminium that offers exceptional corrosion resistance, even when exposed to harsh saltwater marine environments.
• Low-Heat DC Solenoid: Features an integrated multi-directional DC solenoid designed for low energy consumption. Unlike traditional AC units that overheat and cause structural expansion leaks, this unique design generates minimal heat to ensure long-term durability and safety.
• Tool-Free Installation: Engineered for hand-tightened attachment, meaning you do not need any special tools or wrenches to securely fasten it onto a standard CO2 cylinder.
• Integrated Bubble Counter: Comes equipped with a built-in bubble counter, allowing aquarists to visually track and manage fine adjustments for a timely, measured gas output.
• System Restrictions: Note that this unit is built exclusively for refillable gas tanks and cannot be used with small, disposable CO2 cartridges.