new and .High Wear-resistant and durability.SUITABLE FOR USE IN AQUARIUMS: The carbon dioxide pressure reducing valve is suitable for your breeding of aquatic and tropical fish. Supplementing aquatic plants with sufficient carbon dioxide can increase their growth rate and greatly the ornamental plant population. If your primary role is fish farming, rather than aquatic plants, use this regulator with caution.TAKE IT EVERYWHERE: Keep putting pressure on your barrel when you're without clunky CO2 gear. Lightweight construction for easy setup of your mobile device; Portable size allows you to take it with you to any outdoor barbecue or -.ADAPTER NOT REQUIRED: The premium regulated charger is , just big enough to accommodate a small regulator. Do not use an adapter. : Mini CO2 regulator system with aluminum components for stability and .EASY TO USE: Insert the CO2 , turn the knob to the PSI and attach it to your . The included isolating switch ensures a tight seal time. The 0-90 PSI gauge on the regulator is accurate and accepts CO2 cartridges of sizes. Not recommended for use with nitrogen. note that a 5 gallon requires multiple cartridges to fully dispense.Height: 75.4mmThread: TR21-4Gauge pressure: 90PsiWeight: 224gColour: silverMaterial: aluminum + copperPackage Contents:1 * Pressure regulator connector