Chihiros CO2 Regulator Mate
Trusted by 500+ aquascapers
- Everything in one compact unit
- Fine control over bubble rate
- Automatic CO2 shut-off at night
- Fits standard EU W21.8 cylinders
- Bubble counter refills without disassembly
Chihiros CO2 Regulator Mate is backordered and will ship as soon as it is back in stock.
Fast delivery (1–5 days EU)
Carefully packed and protected
Tips from real aquascapers
Chihiros CO2 Regulator Mate
Chihiros CO2 Regulator Mate is backordered and will ship as soon as it is back in stock.
Description
Description
The Chihiros CO2 Regulator Mate is an all-in-one CO2 pressure regulator for planted aquariums, combining a dual pressure gauge, integrated solenoid valve, needle valve, and bubble counter in a single compact unit. It connects to standard refillable CO2 cylinders with EU W21.8 thread and works with the Chihiros Solenoid Controller (sold separately) for Bluetooth-based timer control via the My Chihiros App.
The bubble counter features an easy-refill design — water can be topped up without disassembly. The solenoid valve allows automatic CO2 shut-off during the night period, either via a timer plug or the Chihiros Bluetooth controller.
Key features
- Dual pressure gauge: cylinder pressure + working pressure
- Integrated solenoid valve for automatic CO2 shut-off
- Fine needle valve for precise bubble rate adjustment
- Easy-refill bubble counter with integrated check valve
- Compatible with EU W21.8 thread CO2 cylinders
- Optional Bluetooth control via Chihiros Solenoid Controller (sold separately)
Technical specifications
- Thread: W21.8 (standard EU refillable CO2 cylinders)
- Working pressure: 0–4 bar, adjustable
- Solenoid: Integrated, 12V DC
- Bluetooth: Via optional Chihiros Solenoid Controller
Important note
The needle valve is designed for fine CO2 flow adjustment only — not for full shut-off. Always use the main cylinder valve to fully close the CO2 supply.
FAQ
What makes Aquarium Boutique different from mass-market stores?
What makes Aquarium Boutique different from mass-market stores?
We don't sell everything — we sell only carefully selected products, personally tested. Every item is chosen with a clear purpose: to work well and last long. You don't need to guess about quality — we've already done that for you.
Do you ship to my country?
Do you ship to my country?
Yes, we ship across all of Europe. For Bulgaria we work with BOX NOW and Speedy — fast and reliable home or locker delivery. For other EU countries we use international courier services.
How quickly will I receive my order?
How quickly will I receive my order?
For orders within Bulgaria, we typically deliver within 1–3 business days. For other EU countries — usually 3–7 business days depending on location.
Can I return a product if I'm not satisfied?
Can I return a product if I'm not satisfied?
Yes. If something doesn't meet your expectations — contact us. We have a clear and fair return policy. Your satisfaction matters to us and we will find a solution.
Do you offer advice on product selection?
Do you offer advice on product selection?
Absolutely. Our team keeps aquariums and knows the products personally. Write to us — we'll help you choose the right solution for your tank, budget and experience level.
Are your products tested and approved?
Are your products tested and approved?
Yes. Every product in our store has gone through our personal selection and testing process . We only work with trusted brands and don't list products we don't believe in.
What payment methods do you accept?
What payment methods do you accept?
We accept all major payment methods — credit and debit cards, PayPal, and cash on delivery for Bulgaria. All payments are secure and encrypted.
How can I track my order?
How can I track my order?
After your order ships, you'll receive an email with a tracking link. You can follow the status in real time directly through the courier's website.
