ezrida, i have tried them and do not like them, and im frugal as well. read most of my posts and they are trying to save others money. if your frugal you would realize they are overly expensive for the quality, and ends up being cheaper to buy a higher quality spray head as you will not break them as often or they wont mess up due to chemicals as often so in the long run it is cheaper, now i have some cheap sprayers i use but i prefer good sprayers, bottles are bottles no need for special bottles besides ones that can withstand the chemicals you are using. i could care less about dilution marks on the side as bottles can have variations due to different manufacturing tolerances, i like my chemical mixtures to be accurate as possible so i use a dilution calculator which gives me exact measurements. us plastics have some quality sprayer heads for a great price....the zep sprayers from lowes i want to try, they look like they will pump alot more fluid then other ones and seems to be very sturdy, best part is the spray heads can be disassembled for cleaning.