While I don't personally put much stock in the so called similarities between the Zaino and Duragloss lines, I did read a list of one persons thoughts on comparable products.
My use of Zaino was many years ago. Before the "Pro" designation. I wasn't impressed enough to buy more. Good, but nothing special. That's based only on appearance. Longevity has never been a priority for me. I'll be adding more before long anyway.
My use of Duragloss has been limited to #501, #601, #105, and Aqua Wax. Good results with all of them. In fact I liked the AW enough to buy a gallon of the stuff.
The DG is definitely priced right.
Anyway, the comparable products he listed:
501 similar to ZAIO (slightly stronger cleaning with 501)
111 similar to Z2
105 similar to Z5
221 similar to Z10
951 similar to Z8
921 similar to Z6
601 similar to ZFX
441 similar to Z9
671 similar to ZPC.
There you have it. His ideas seemed to be pretty well put, but I don't really know.
Don't really care, but some people might.
My use of Zaino was many years ago. Before the "Pro" designation. I wasn't impressed enough to buy more. Good, but nothing special. That's based only on appearance. Longevity has never been a priority for me. I'll be adding more before long anyway.

My use of Duragloss has been limited to #501, #601, #105, and Aqua Wax. Good results with all of them. In fact I liked the AW enough to buy a gallon of the stuff.

Anyway, the comparable products he listed:
501 similar to ZAIO (slightly stronger cleaning with 501)
111 similar to Z2
105 similar to Z5
221 similar to Z10
951 similar to Z8
921 similar to Z6
601 similar to ZFX
441 similar to Z9
671 similar to ZPC.
There you have it. His ideas seemed to be pretty well put, but I don't really know.
Don't really care, but some people might.