Fish & aquarium
MagTool 2025 Upgraded 2.5-5L DIY Aquarium CO2 Generator Kit, Stainless Steel Bottle with Integrated Solenoid & Bubble Counter, Safety Valve, Main Switch, Complete Accessories for Planted Tanks
by MagTool
FREE delivery Sunday, May 17
Only 16 left in stock - order soon.
Sold by: MagTool US
Check Price on AmazonCustomer Verdict
Customers find the CO2 generator reliable, easy to set up, and effective at raising CO2 levels, with one customer noting it works well for home gardens. The product receives positive feedback for its quality and value for money, and customers report their plants are flourishing. However, durability is mixed, with some units lasting months while others broke after 5 months, and several customers report issues with the solenoid valve leaking. <!-- k-injected k+b64 eyJrLW9ic2VydmUiOiIiLCJrLWNvbXBvbmVudCI6IlNoYXJlZENvbnRlbnQtOG96aXhjXzg5czBncmJfIiwiay1pZCI6IjlkNjMzYWY4LTFlZDEtNGZiMC1iYWMxLTlkMTljNDQ2NDJjYiIsImstZGF0YSI6eyJzaGFyZWRTZW50aW1lbnRzIjpbeyJhc3BlY3RzIjpbeyJzdW1tYXJ5IjoiQ3VzdG9tZXJzIGZpbmQgdGhlIENPMiBnZW5lcmF0b3IgcmVsaWFibGUsIHdpdGggbXVsdGlwbGUgcmV2aWV3cyBjb25maXJtaW5nIGl0IHdvcmtzIGFzI
Brand
MagTool
Material
Stainless Steel
Tank Volume
4 Liters
Special Feature
Lightweight
Item Weight
3.26 Kilograms
Specific Uses For Product
Indoor
Video previews
10 clipsHLS stream links (10)
About this item
- 1
Upgraded 304 Stainless Steel Bottle with External Thread. Made from food-grade 304 stainless steel, now 50% thicker for enhanced durability. The 2.5L bottle holds 200–300g of material, and the 5L holds 600–800g. External thread design prevents the bottle from getting stuck due to residue buildup. High-pressure resistant with a mirror-polished finish—built for both safety and aesthetics.
- 2
Upgraded All-in-One Integrated Solenoid & Bubble Counter. Redesigned compact body with fewer connections reduces leak risk. Features a built-in injection port for easy observation fluid refill without disassembly. Simple, reliable, and space-saving—ideal for planted tanks.
- 3
Upgraded Dual Safety Mechanism. Equipped with a manual shut-off valve for full control when CO₂ is not needed, and an automatic pressure relief valve that vents safely when internal pressure exceeds the safe limit.
- 4
All Accessories Included – Ready to Use. Everything you need to get started: diffuser, check valve, U-connector, suction cups, tubing, funnel, syringe, ceramic disc, sealing rings, and power adapter. No need to purchase extra parts separately. (Row material NOT included)
- 5
One-Year Warranty on Key Components. We stand behind our quality. The upgraded model comes with a 1-year warranty on essential components like the solenoid valve and regulator to ensure long-term peace of mind.
What Customers Are Saying
Based on 296 customer ratings
Customers find the CO2 generator reliable, with multiple reviews confirming it works as expected, and one customer noting that their water and fish are doing exceptionally well.
43 mentions
Customers find the CO2 generator to be a solid product, with one customer noting that the tubing is of higher quality compared to other DIY systems.
36 mentions
Customers find the CO2 generator easy to set up and use, with one customer noting that all parts connect straightforwardly.
24 mentions
Customers are satisfied with the CO2 system's performance, with one mentioning it provides several weeks of supply and another noting it doesn't waste CO2 during night hours.
17 mentions
Customers find the CO2 generator to be good value for money, with one customer noting it's the most cost-effective way to get CO2.
16 mentions
Customers report that their plants are flourishing with the CO2 generator, with one customer noting that their plants are pearling and another mentioning that their tank grows beautifully without algae.
10 mentions
Customers have mixed experiences with the CO2 generator's durability, with some reporting it lasts for months while others mention it broke after 5 months and the electronics failed within 3 months.
27 mentions
Customers report issues with the CO2 generator leaking, particularly noting problems with the solenoid valve.
14 mentions
Product Specifications
| Brand Name | MagTool |
| Included Components | 4 Liter SUS304 stainless steel bottle, DC mini solenoid, Regulator, Precision needle valve, Bubble counter, CO2 diffuser, CO2-graded tubing, Plastic funnel, Measuring cup |
| Model Number | MT-4L |
| Manufacturer | MagTool |
| Set Name | MagTool 2025 Upgraded 5L DIY Aquarium CO2 Generator Kit |
| Unit Count | 1.00 Count |
| Additional Features | Lightweight |
| Specific Uses For Product | Indoor |
| Vivarium Type | Aquarium |
| Pet Type | Fish |
| Target Species | Fish |
| Tank Volume | 4 Liters |
| Item Weight | 3.26 Kilograms |
| Product Style | Modern |
| Color | Silver, White |
| Material Type | Stainless Steel |
Key Features
Similar Products
AAwipes
AAwipes Fish Tank Marine Water Test Strips 9-in-1 |25 Strips | Freshwater, Saltwater & Reef Tanks Quick & Accurate Test pH, Carbonate, Copper, Alkalinity, Hardness, Chlorine, Nitrate, Nitrite, etc
$8.98
2022
2022 version fish tank DIYCO2 regulator, solenoid valve bubble counter CO2 reaction control system pressure reducing valve kit(K303C-AU plug,AC100-240V-G5-8)
$160.75
3
3 Pack Aquarium Plants Plastic Realistic Fish Tank Plants with Weighted Base Green Aquarium Decor for Betta Tanks Aquascaping Reptile Terrariums
$9.99
0-20
0-20 ppm Ammonia Test Strip, 100Strips, Contains 6ml Activator, Accurate Readings, Easy to Use, Ammonia Test Kit for Fish Tanks, Ponds, Aquaculture, Freshwater Aquarium
$34.99
MagTool 2025 Upgraded 2.5-5L DIY...
$109.99
