ZO-300RAM1 Ozonator 120V Amp Cord W/Min Parts Horizon #42-133-1200 Manf. Delzone Manf. # ZO300RAM1 ZO-300/ ZO-302 Modular Ozonator For installation into spas with water capacity up to 1,000 gallons. The power supply and ozone generator cartridge easily snap together to mount horizontally or vertically. Shipped with supply tubing, clamps, and mounting hardware Identical to: DELZO300RAM2, ZO-300RAM1