Unfortunately there is a constant clogging issue over a range of temperature I tested. Teflon tube fixation tool is not good quality and the tube moves back and forth. I could not understand what causes the clogging. I also do not recommend teflon tube option since it is not fixed, meaning if not carefully measured, it will always move back and forth and cause clogging again. Sorry, the product needs some fixation.
Arrived fast, No screw’s holes in the bottom.