We advise you to check the cartridge after prolonged storage in a damp environment and, as a precaution, to replace it at the beginning of each season. Gas cartridge 33gr. for 150Nm and 165Nm Several volumes available. Contact us for orders. Ref Type Drijfvermogen Inhoud Bestemd voor 20425004 CO2 Cilinder 100N 24g Junior 20425005 CO2 Cilinder 150N/165N 33g Adult 20427040 CO2 Cilinder 180/190N 38g Adult 20425006 CO2 Cilinder 220N 45g Adult 20427013 CO2 Cilinder 275N/300N 60g Adult