DICI 221 Series: High-Precision Dual-Gauge Aquarium CO2 Regulator with Silent Solenoid & Integrated Bubble Counter

Technical Specifications: Product Basic Information

The DICI 221 is the pinnacle of fluid control engineering. Built with a focus on longevity and compatibility, it fits seamlessly into any modern aquarium setup.

Why Choose the DICI 221?

When evaluating aquarium CO2 equipment, the details make the difference. The DICI 221 stands out by addressing the common failures of generic regulators.

2.1 Dual-Gauge Monitoring for Total Control

Knowledge is power. The dual-gauge system of the 221 allows you to monitor the two most critical data points in your gas line:

The Cylinder Gauge (0-3000 PSI): Tells you exactly how much gas is left in your CO2 tank, so you can plan refills before your plants suffer.

The Working Pressure Gauge (0-100 PSI): Monitors the pressure being sent to your atomizer or diffuser. This ensures a consistent flow rate, regardless of the ambient temperature or gas volume.

2.2 Whisper-Silent DC Solenoid Valve

Many cheap regulators use AC solenoids that produce a loud "buzzing" or "humming" sound over time. The DICI 12V DC Solenoid is engineered for the home environment. It is completely silent and stays cool to the touch even after 12+ hours of operation. This prevents heat from degrading the gas tubing and ensures the safety of your home electronics.

2.3 Surgical Precision Micro-Adjustment

The heart of the 221 is its ultra-fine needle valve. Unlike standard valves that "jump" from too little to too much gas, the DICI valve offers a linear adjustment curve. You can achieve bubble counts as low as 1 bubble every 10 seconds, allowing you to safely dose even the smallest nano tanks without the risk of over-gassing your fish.

2.4 2-in-1 Integrated Bubble Counter & Check Valve

Space-saving and safety-first. Our aluminum bubble counter is integrated directly into the regulator body. It features a built-in stainless steel check valve that prevents aquarium water from back-siphoning into the regulator, protecting your precision internal components from corrosion and failure.

Versatility for Every Aquarist

The DICI 221 Dual-Gauge Regulator is the versatile workhorse of the aquatic industry, suitable for:

Professional Aquascaping: Essential for growing demanding red plants like Rotala Macrandra or carpeting plants like HC Cuba and Monte Carlo.

Freshwater Community Tanks: Maintains stable pH levels to reduce stress for sensitive fish species such as Discus or Dwarf Cichlids.

Marine Calcium Reactors: Its precise, low-volume output makes it a favorite for reef keepers who need to accurately dose CO2 into calcium reactors to maintain alkalinity and calcium levels.

Greenhouses & Hydroponics: Reliable enough for small-scale indoor farming setups that require automated CO2 enrichment.

Why CO2 Dosing Matters

Photosynthesis is the engine of your aquarium. Plants combine light and CO2 to create energy. In a closed aquarium, CO2 is quickly depleted. When CO2 levels drop, plants stop growing, and opportunistic algae take over.

By using the DICI 221, you ensure a consistent 30ppm concentration of CO2. This leads to the famous "Pearling" effect—where plants release visible bubbles of pure oxygen—a sign of a perfectly balanced and healthy ecosystem.

The DICI Valve Advantage

At DICI Valve, we don't just sell products; we engineer solutions. With over 15 years of specialization in high-pressure fluid control, we have become a globally recognized brand in the aquascaping community.

Our Quality Philosophy:

Leak-Free Guarantee: Every single 221 unit undergoes a 48-hour pressure-hold test before it leaves our facility.

Industrial Precision: We use CNC machining to ensure that every thread and every seal meets aerospace-grade tolerances.

Global Reach: We offer localized thread standards and power plug types for all major markets, ensuring a "plug-and-play" experience for global distributors and hobbyists.

OEM/ODM Expertise: We are the preferred partner for many global aquarium brands, providing private label manufacturing and custom engineering services.

To ensure the longest lifespan for your aquarium CO2 system, follow these expert tips:

Correct Mounting: Use the provided sealing washer and tighten with a wrench (do not over-tighten). Never use Teflon tape on the cylinder connection.

Solenoid Automation: Connect the solenoid to a high-quality timer. Set the CO2 to turn ON 1 hour before lights-on, and OFF 1 hour before lights-off.

Bubble Counter Fluid: Fill the counter 2/3 with water or specialized CO2 indicator oil for easy visual monitoring.

Annual Checkup: Periodically spray a small amount of soapy water on the joints to ensure there are no microscopic leaks, saving you gas and money.

Q: Will the solenoid get hot? A: No. Our 12V DC technology is energy-efficient and stays cool even during extended operation cycles.

Q: Can I use this with a paintball tank? A: Yes, with a standard CGA320-to-paintball adapter, the DICI 221 works perfectly on portable paintball setups.

Q: What is the warranty period? A: We provide a 12-month manufacturer warranty covering all mechanical and electronic components.

Q: Is it compatible with pH Controllers? A: Yes. The solenoid is fully compatible with all major pH controllers for automated CO2 management.

FAQ

1.Are you a factory or trading company?

We are factory.

2.Do you offer OEM service?

Yes,OEM,ODM all available.

3.How is MOQ?

①Our own brand no MOQ request.

②Neutral products MOQ request 100pcs.

③Customized LOGO and packaging MOQ request 500pcs.

4.Delivery time?

①Our own brand around 10 days.

②Neutral products MOQ around 10 days.

③Customized LOGO and packaging around 50 working days.

5. Warranty?

One year.

6. Certificates?

ISO9000,CE,FDA,REACH,ROHS...

7. How is the QC?

We take our all products 100% leaking detection before delivery.

Company Advantage

1.One-Stop,which can save your time and energe,improving efficiency and provide a better experience.

2.OEM/ODM

3.Champion Quality.The quality of our products is trustworthy.

4.Reasonable Price.Fair and reasonable market pricing.

5.Free Sample.Sample provided at no cost.

6.Small Order.We accept small order.

7.24/7 Service.We offer 24/7 internet access.

8.R&D support.Material science R&D support"

9.Bulk Instock.We have bulk instock for fast delivery.

10.Flexible Payment.Pay in your preferred way.

11.Safe Packing.We use safe packing for all shipments.

12.1-Year Warranty.After-sales service is guaranteed.