Ozone Mazzei injector by the original manufacturers, Mazzei.
High Quality Ozonator non-return valve or check valve.
Clear vinyl 1/4" ID x 3/8" OD. Used as OZONE tubing. Sold per METRE or per ROLL. When choosing, for instance, to buy 3metres you will receive one 3m length.
Spring steel clamp for 1/4" pipe (Ozone pipe)