This is "Purple Hammer", our toughest Cleaning Solution to date! Rated as our most aggressive solution that will get the toughest jobs done on any Garment Printer whether its flushing or cleaning out your head!*Only for Epson based printer if pushing through the system. Please do not store in the printer long term (more than 1 week). Otherwise can cap the head with to clean off but no longer than overnight. Please note we are not affiliated with Epson and this is not an Epson product.