40 Leland (LE10 CO2) CO2 soda chargers - 8g C02 seltzer water cartridges - 4 boxes of 10 Uses include: carbonated soda water (with no quinine & no aftertaste!) Save Money! Make your own soda at home! Virtually unlimited shelf-life! 8g CO2 non-threaded weld-sealed steel Antique pellet gun & toy car propellant; Kleer-Drain by Mag Engineering refill CO2 cartridges