As the title states. Also preferably with a drip feed option. I've come across Dutch views with a retention of around one minute, this is not good enough for what I need. I've looked at almost every seller here on BHW, but I can't seem to find one that meets my requirements. If you could point me in the right direction I'm willing to give a reward. If you're a supplier, please only contact me if you have a reputable business. Thanks in advance.