Local 20 lb food-grade CO₂ tank exchange for indoor gardens and other CO₂ applications. Bring in your eligible empty aluminum cylinder and exchange it for a full tank at Perris Hydroponics.Important: local pickup only No shipping: This listing is for an in-store exchange and cannot be shipped. Bring an empty 20 lb tank: The exchange requires a tank in good condition. Tank date: The latest HYDRO date stamp must be no older than 4 years and 10 months. Tank condition: The valve must be intact and the tank cannot be completely rusty. Approval: Trade-ins are subject to inspection and may be refused at our discretion. Suitable for Indoor gardens Soda machines and kegerators Pneumatic tools Paintball refills and other compatible CO₂ uses These tanks are full. Place your order, then bring your qualifying empty 20 lb cylinder to Perris Hydroponics for the exchange.
