The Flo Supply 5lb composite C02 bottle features a lightweight design, weighing only 4.5lbs when empty and 9.5lbs when full, it's ideal for various applications. Measuring just 4.53" in diameter and 19" in length (including valve), it offers a compact solution without compromising on performance. Equipped with a CGA 320 Brass Valve featuring a .725-14 Nipple Thread, this bottle is designed to meet your CO2 needs with efficiency and durability.�