From the product description, check product page for current description, price and availability:

A new 5 lb CO2 tank is one of the required purchases when you’re changing over from bottling to kegging your beer.

This brand new 5 lb aluminum CO2 tank ships free in the 48 contigous states. Aluminum tanks will never rust, which is why we prefer them over steel tanks. The capacity refers to the amount of compressed (liquified) CO2 the tank can hold. 5 lbs of CO2 is enough to dispense 8 to 9 5-gallon kegs of homebrew.

All new CO2 tanks are shipped empty and will require either filling or exchanging for a full tank. Most local homebrew shops will stock gas to exchange, and many local welding supply companies can fill tanks on site.

CO2 tanks should always be stored in an upright position.

Dimensions: 14.33″ Tall x 5.25″ wide.

• Rebuilding & Reconditioning Homebrew Kegs!
• Step by Step: Finding and Fixing Keg CO2 Leaks
• Why Do I Have Bubbles in My Beer Line?
• Checking for Draft System CO2 Leaks – Using The Pressure Gauge Method
• Step by Step: Balancing Your Kegerator Draft System
• Build a Recirculating Draft Line Cleaning Pump
• Building a Simple Ball Lock Draft Line Flushing Setup
• Damp Kegerator? Fix Kegerator Condensation
• What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs?
• Hands on Review: Kegland DuoTight Fittings & EVABarrier Tubing!
• Kegerator Foam Problems? – Fight the First Foamy Pint!
• Keg O-Ring Materials Selection – EPDM, Silicone and Buna-N
• Kegerator Beer Line Temperatures & Reducing Foam with a Recirculating Fan
• Food Safe Replacement Keg O-Rings in Bulk
• Upgrade Your Kegerator – 6 Improvements!
• Why Won’t My Homebrew Carbonate? Fixing Beer Carbonation Problems
• Serve Homebrew on Any Kegerator & Convert Commercial Kegerator to Homebrew
• Tips and Gear for Growler Filling
• Tip: Consider Oetiker Stepless Clamps for Kegerator Gas and Beer Lines
• Hands On Review: Inkbird ITC-308 Dual Stage Temperature Controller +WiFi Version
• Universal Poppets Tips and Tricks!
• Convert Your Mark II Keg & Carboy Washer to a Recirculating Draft Line Cleaner
• Kegging CO2 Use Estimations and Calculations
• Home Brew Keg Roundup – New & Used, 5 and 2.5 Gallon & More!
• Portable Draft Beer Serving Options!
• Five Benefits of Using Corny Kegs As Fermenters
• Homebrew Temp Controller Roundup! – Kegerator and Fermentation – con…
• Bulk Keg Orings and Keg Repair Part Numbers