Digitech Air Trap 180 Ml High Flow UAT Bubble Trap BlueDigitech Air Trap 180 Ml High Flow UAT Bubble Trap The new range of Digitech High Flow Air Traps offer excellent filtration and flow. Fitted with a high quality filter material reducing the possibility of bubbles. This UAT is designed to work with a single or twin tank setup. NOTE! : If you have a 2 tank setup you MUST order a Extra Nipple here as there is only one supplied by the manufacture due to the fact its supplied to us as a single tank