DEL Ozone manufactured the DELZONE ZO-301, ZO-300 and ZO-302 for decades. This line of spa ozone generators is still held as one of the best products ever built.
We were sad to see them discontinued. But, we are happy to give you an even better product, the MCD-50 Spa Ozone Generator. It is the #1 choice for spas!
If you are replacing an old DELZONE favorite, you'll be glad you switched it out with a more energey-efficient, renewable MCD-50.