What is the reason for needing a solenoid? How will the system run without one?

The solenoid will control the co2 output. When turn off the solenoid, there will not be co2 out from the generator. If without the solenoid, the co2 will keep output.

How long do I have to wait before using the set up in my tank?

You can use it as soon as the needle is in the green.

How can i replace the needle valve. Mine is broken alternating between full throttle or 0?

This isn’t a replacement part for the co2 generator it’s valve for a co2 tank. I recommend contacting the manufacturer.

For a 4l co2 generator, should i put in 600-800 gram each of material a&b? also do i pour in 300ml water or more? i've read different opinions online.

I use 600 ml for the material each and 800 ml of water I freeze the water in try"s that make long round ice cubes the cube are made to put in water bottles

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FZONE 5.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for 600-800g Raw Material

Product ID: 524278183

Details

Brand
FZONE
Item Form
Liquid
Liquid Volume
5.5 liters
Manufacturer
FZONE
Unit Count
1 Count

⏲️12V DC solenoid timer-ready for custom CO2 cycles

⚙️Precision needle valve with bubble counter, steady 1 bps

🛡️1.5mm SUS304 steel, 25% thicker for max safety

R5416

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Description

🌿 Elevate your aquarium game with precision CO2 control—because your aquatic plants deserve the best!

COMPLETE DIY KIT - Everything you need except raw materials—designed for pros who want full control over their aquarium’s carbon dioxide environment.
BACKFLOW PROTECTION - Built-in check valve prevents water from damaging your CO2 tank, extending equipment life and reliability.
PRECISION CO 2 CONTROL - High-accuracy needle valve with integrated bubble counter lets you fine-tune CO2 flow to a steady 1 bubble per second for optimal aquatic plant growth.
CUSTOMIZABLE CO 2 SCHEDULING - 12V DC solenoid compatible with timers (sold separately) lets you automate CO2 injection, syncing perfectly with your aquarium’s light cycle.
INDUSTRIAL GRADE DURABILITY - Robust 1.5mm SUS304 stainless steel bottle withstands up to 1137 PSI, ensuring ultimate safety and longevity.

The FZONE 5.5L Aquarium CO2 Generator System is a professional-grade DIY kit featuring a thick 1.5mm SUS304 stainless steel bottle capable of withstanding pressures up to 1137 PSI. It includes a precision needle valve with an integrated bubble counter and backflow check valve for accurate and safe CO2 delivery. Designed for aquarists who demand control, it supports 12V DC solenoid timers for customizable CO2 injection schedules. Raw materials for CO2 generation are sold separately.

Specifications

ASIN	B08THYYFMN
ASIN	B08THYYFMN
Best Sellers Rank	#51,013 in Pet Supplies ( See Top 100 in Pet Supplies ) #177 in Aquarium Air Pump Accessories
Brand Name	FZONE
Customer Reviews	4.2 4.2 out of 5 stars (990)
Date First Available	February 23, 2023
Item Form	Liquid
Item model number	FZ-4LKIT-US
Liquid Volume	5.5 liters
Manufacturer	FZONE
Manufacturer	FZONE
Manufacturer Part Number	FZ-4LKIT-US
Model Number	FZ-4LKIT-US
Package Dimensions	17.4 x 10.79 x 7.05 inches; 7.14 pounds
Pet Type	Fish
Target Species	Fish and Plants
UPC	764595876395
Unit Count	1 Count

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R5416

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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