Title really says it all. I know there used to be a 1L size of Easy Green available on the store but there isn't one there now. I have the first bottle I bought a couple years back and another bottle I got as part of the fert bundle they did a year back so I already have a pump for my display tank and my fish room. I am finally running low on bottle #1 and I'd rather refill the pump bottles I have than buy more pumps when I already have a few.