Milwaukee MA957 CO₂ Regulator – Solenoid & Bubble Counter

Milwaukee Instruments MA957 CO2 Pressure Regulator – Precision Flow Control for Aquarium CO2 Systems

The Milwaukee MA957 CO2 pressure regulator is a reliable, adjustable system designed for precise control of CO2 flow in aquarium and horticulture applications. Featuring dual gauges, it allows you to independently monitor both CO2 tank pressure and output flow rate, with readings displayed in both psi and kg/cm².

Equipped with a needle-valve flow control, the MA957 enables fine-tuned CO2 delivery for optimal performance. The included electronic solenoid valve allows integration with a timer or pH controller for automated CO2 management. A built-in bubble counter makes it easy to visually track your CO2 dosing rate.

Key Features:

• Dual Gauges: Monitor both tank pressure and output flow rate

• Needle Valve: Allows precise adjustment of CO2 flow

• Electronic Solenoid Valve: Automates CO2 control via timer or pH controller

• Built-in Bubble Counter: Easy-to-read visual indication of CO2 dosing

• 6 ft. (1.5 m) Power Cord: For flexible installation

Note: CO2 cylinder sold separately.

What's Included:

• CO2 Pressure Regulator with Dual Gauges

• Flow Regulator

• Needle Valve

• Electronic Solenoid

• Bubble Counter

About Milwaukee Instruments:
Founded in 1989 and headquartered in Rocky Mount, NC, Milwaukee Instruments is a trusted name in water analysis, offering high-quality instrumentation under both the Milwaukee and Martini brands.

The Milwaukee MA957 is an excellent choice for aquarists and growers seeking dependable CO2 regulation and ease of use—all backed by decades of industry expertise.