Can I use my old blue, screw-system cylinders with the new ART/TERRA/DUO?

No, the ART/TERRA/DUO come with the new easy-to-use pink handle system and is only compatible with our Quick Connect Cylinders. You can exchange your existing cylinder for the new Quick Connect Cylinder at a Checkers/Shoprite, Game, Pick n Pay, Spar, Dis-Chem Ok Food Market, which carries the new Quick Connect Cylinder, or on our website.