Best Jbl M502 Co2 Set 2025

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Last Updated - 26.07.2025

Best Choice

01

JBL

JBL PROFLORA CO2 Professional Set M, CO2 Fertiliser System Complete Set for 40-600 L, with Automatic CO2 and pH Control, Reusable Bottle and Extensive Accessories

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9.7

Exceptional

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Professional complete set for optimal CO2 supply of aquarium plants in 40-600 l freshwater aquariums, healthy and strong plant growth
Easy installation by screwing the pressure regulator onto the bottle, connecting the hose to the bubble counter and reactor and finally starting the controller
Check valve to protect the bottle from water ingress, pH electrode not included
CO2/pH controller for measuring the pH value via a pH electrode (not included) and automatic control of the CO2 supply
Box contents: 1x JBL CO2 fertiliser complete set, JBL PROFLORA CO2 professional set M, incl. 500 g bottle, holder, pressure regulator, solenoid valve, CO2 computer, hose, bubble counter/valve, reactor, fertiliser, item no. 6462200

421,89 €
02

JBL

JBL PROFLORA CO2 Advanced Set U, CO2 Fertiliser System Complete Set for 40-600 L, with Night Shut-Off, 2 Pressure Gauges, Disposable Bottle and Extensive Accessories

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9.6

Exceptional

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TÜV-tested CO2 bottle, hose fittings for added safety, check valve to protect the bottle from water ingress
Ready-to-connect complete set for CO2 supply of aquarium plants in 40-600 l freshwater aquariums, healthy and strong plant growth
Included CO2/Poh permanent test to display the CO2 contentration in aquarium water for readjustment if necessary
Easy installation by screwing the pressure regulator onto the bottle, then connecting the hose to the bubble counter and diffuser and adjusting the bubbles
Box contents: 1x JBL CO2 fertiliser complete set, JBL Proflora CO2 Advanced Set U, incl. 500 g bottle, pressure regulator, solenoid valve, hose, bubble counter check valve, reactor, CO2 test, fertiliser, item no. 6463100

203,03 €
03

JBL

JBL PROFLORA CO2 Basic Set M, CO2 Fertiliser System Complete Set for 40-300 L, with Reusable Bottle and Extensive Accessories

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9.4

Excellent

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Main highlights

TÜV-tested CO2 bottle, hose fittings for added safety, check valve to protect the bottle from water ingress
Ready-to-connect complete set for CO2 supply of aquarium plants in 40-300 l freshwater aquariums, healthy and strong plant growth
Included CO2/Poh permanent test to display the CO2 contentration in aquarium water for readjustment if necessary
Easy installation by screwing the pressure regulator onto the bottle, then connecting the hose to the bubble counter and diffuser and adjusting the bubbles
Box contents: 1x JBL CO2 fertiliser complete set, JBL Proflora CO2 Basic Set M, incl. 500 g CO2 bottle, pressure regulator, hose, bubble counter check valve, diffuser, CO2 continuous test, fertiliser, item no. 6462000

153,08 €
04

JBL

JBL Proflora CO2 Advanced Organic Set, Organic CO2 Fertiliser Set for 40-110 L, with Extensive Accessories

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9.3

Excellent

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No CO2 pressure bottle required, works exclusively via a biological process
High yield, 2 x 40 days CO2 production thanks to immediate and long-term buffer system, organic components also available individually as a refill
Easy to install by mixing organic components and water in the reaction bottle and then connecting the hose to the backflow protection and the reactor
Box contents: 1 x JBL organic CO2 fertiliser system, JBL Proflora CO2 Advanced Organic Set, incl. reaction vessel, thermal protection, 2 x organic components, 3 m CO2 hose, suction holder, return protection, diffuser, item no. 6461200
Advanced set for CO2 supply of aquarium plants in 40-110 litres freshwater aquariums, healthy and strong plant growth, preventive against algae

34,99 €
Value for Money

05

JBL

JBL PROFLORA CO2 Cylinder 500 U 3 x 500 g CO2 Disposable Storage Bottle (Pack of 3)

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9.1

Excellent

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TÜV approved. As CO2 liquefies under pressure, CO2 compressed gas cylinders must be vertically in operation
Includes mounted rubber base for secure stand. Total height with mounted pressure regulator: 37 cm
Easy installation: turn pressure control fitting with internal thread to the external thread (M10x1) of the storage bottles
CO2 storage bottles for all CO2 systems. Provide aquarium plants with their main nutrient carbon dioxide (CO2) and thus prevent algae
Box contents: 3 x disposable bottles, ready filled with 500 g CO2, dimensions: 31 x 7.5 cm, thread M10 x 1
Age Range Description: Adult

65,00 €
06

JBL

JBL PROFLORA CO2 CYLINDER 500 U, Recyclable Disposable CO2 Compressed Gas Cylinder, Steel, 500 g CO2, Thread M10 x 1

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16% Off
9.0

Excellent

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TÜV-tested and recyclable disposable steel bottle, M10 x 1 thread
Ready-filled reusable storage bottle for CO2 systems for CO2 supply of aquarium plants
Operation in vertical position due to CO2 liquefaction under pressure absolutely required
Includes mounted rubber base for a secure stand, 37 cm total height (including mounted pressure regulator)
Box contents: 1 x JBL disposable CO2 compressed gas bottle, JBL Proflora CO2 CYLINDER 500 U, contents: 500 g CO2, thread: M10 x 1, dimensions: 31 x 7.5 cm, item no. 6466200

25,22 € 30,29 €(16% Off off)
07

FZONE

FZONE 2.5 L CO2 System Aquarium System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks (with Solenoid

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8.9

Very Good

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Main highlights

Safe. The bottle body is made of 1.5mm thick SUS304 stainless steel (25% thicker than normal 1.2mm bottles). It can withstand a pressure of up to 80 kg/cm2 (or 1137 PSI). The safety valve opens automatically when the internal pressure exceeds the safety threshold
Professional DIY kit. A complete system in a bottle with a size of 2.5 L, which includes a SUS304 stainless steel bottle, a regulator, a precision needle valve and an easily adjustable bubble counter
Please note: The required powders to generate CO2 gas are not included. You need citric acid and sodium bicarbonate powder
ONE YEAR WARRANTY Fzone offers a one-year warranty, 24/7 service and you can contact us at any time with any questions about our products.
Needle valve with bubble counter. The high-precision, aquarium-specific needle valve ensures accurate fine tuning. Steady 1 bps is achievable. Bubble counter with built-in check valve. It prevents water from flowing back into your CO2 tank (protects your CO2 tanks from rust and corrosion).
12 V DC instead of alternating current. When the magnet is on a timer, you can specify when and for how long the CO2 injection should be turned on

99,99 €
08

JBL

JBL PROFLORA TAIFUN SPIRAL 5 CO2 Reactor for Freshwater Aquariums up to 200 L with Hose

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8.8

Very Good

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Main highlights

Operation without additional pump, no separate bubble counter required, easy to clean, completely dismountable, expandable
Expandable CO2 reactor for healthy plant growth in freshwater aquariums from 40 to 200 litres from 12 cm height, lossless enrichment with carbon dioxide
Easy installation by connecting the reactor with special CO2 hose to CO2 fertiliser system (system not included)
Collection cap against CO2 loss, robust Makrolon, up to max. 200 litres at 4 KH, up to 100 litres at 10 °C
Box contents: 1x JBL CO2 reactor, JBL Proflora CO2 TAIFUN SPIRAL 5, with 5 modules and base module, collection cap at the top, 2 clamps, suction cups, 2 m hose, height: 11 cm, item no. 6468400

14,39 €
09

JBL

JBL ProFlora u500 Disposable CO2 Cylinder 3 x 500g

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8.5

Good

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Set of 3 replacement CO2 bottles for JBL Proflora U401, U402 and U403 kits. Non-refillable CO2 disposable bottle

81,00 €
10

JBL

JBL ProFlora Co2 Cylinder 2000 M
8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

147,19 €