This FloEasy pump supplies just the right amount of paint directly to the specially designed head from the inside out. Drips are a thing of the past, along with messy trays and spatter. The paint roller or pad is continuously supplied with an even flow of paint. One coat is enough. When the work is done, cleanup is easy. Attach the pump to your faucet and it"s cleaned the same way from the inside out. Water-based paint only needs to be used.