150 - MOSA CO2 8g soda chargers - seltzer water cartridge - 15 boxes of 10 8g CO2 non-threaded weld-sealed steel - virtually unlimited shelf-life! Uses Include: carbonated soda water (with no quinine & no aftertaste!) Antique pellet gun & toy car propellant Kleer-Drain by Mag Engineering refill CO2 cartridges FREE, FAST SHIPPING from CA or FL