CO2 Tanks & Seals

GLA 2.5 lb Aluminum CO2 Cylinder The GLA 2.5 lb CO2 cylinder is a compact, high-quality aluminum cylinder designed for planted aquarium CO2 systems where space efficiency is important. Its smaller footprint makes it an excellent choice for nano...

GLA 5 lb Aluminum CO2 Cylinder The GLA 5 lb CO2 cylinder is a high-quality aluminum cylinder designed for planted aquarium CO2 systems. Its compact footprint and reliable capacity make it one of the most popular choices for freshwater planted aquariums...

74 Gram Disposable CO2 Cartridges (2 Pack) Replacement 74 gram disposable CO2 cartridges designed for use with compatible aquarium CO2 systems and regulators. These compact cartridges provide a simple and convenient CO2 source for nano aquariums,...

GLA OEM CO2 Tank Seal The GLA OEM CO2 tank seal is designed for the connection between your CO2 regulator and CO2 cylinder, helping ensure a secure and leak-free installation. This premium clear replacement seal is compatible with standard aquarium CO2...

Nylon CO2 Tank Seal This nylon CO2 tank seal is designed for the connection between your CO2 regulator and CO2 cylinder, helping create a secure seal during installation. Replacement seals should be changed during each CO2 cylinder refill to help...

GLA Stainless Steel Check Valve - Planted Tank Check Valve  The GLA Stainless Check Valve is a high-quality, stainless steel check valve designed to protect your CO2 system from backflow. Built for reliability, it helps prevent aquarium water from...

GLA Atomic Check Valve – Nature Aquarium Check Valve High-Pressure CO2 Protection in a Compact, Precision-Machined Form Engineered for serious aquascapers and high-performance planted aquarium CO2 systems, the GLA Atomic Check Valve is a premium...