External CO2 Diffuser Reactor for Planted Aquariums, 2500 mL

This external CO2 diffuser reactor connects inline to your canister filter outflow so CO2 dissolves into the water before it returns to a planted aquarium, keeping the tank free of a visible diffuser.

• Capacity: 2500 mL reactor chamber
• Size: 14.8 in tall x 4.6 in diameter (375 x 116 mm)
• Hose fit: 12/16 mm and 16/22 mm hose connectors included
• Tank size: For aquariums up to 158 gallons (600 L)
• Material: Clear, impact-resistant plastic body
• Installation: Mounts outside the tank on the filter return line

Typical delivery 7–15 business days.