DARYL in CA
I have about 3 Ratio Rites, and a few other brands.
The Ratio Rite is the only one that holds up.
Still the first and best mixing bottle.
Eric in MI
If you buy the Cup, get the lid...keeps the cup clean between uses,and only costs a few $$.
This is a must if you have the cup. just pay the few $$ and keep dust/dirt out between tanks.