The Unico Condensate U-trap (A00924-G05 and A00924-G06) features a clear, heavy wall seamless trap that is easy to visually inspect for clogs. The U-trap, specially made for the Unico System, includes an extra deep 2.5 inch (64 mm) trap to handle the higher static pressures. The U-trap features a 2.5" long trap, a clean-out extension pipe, two tees to accommodate any piping arrangement, and the necessary fitting to connect to the drain pan. The Unico Condensate Waterless trap (A01514-G01 and A01514-G02) features a clear trap assembly that does not hold water which helps prevent freeze bursting in cold climate conditions. The float switch is used on both the U-trap (A00924-G05 and G06) and the Waterless trap (A01514-G01 and G02) to prevent overflow of the condensate drain pan if a clog occurs. The Unico System® Seamless Condensate U-Trap Kit, Heavy Wall, 3/4 in Nominal, MNPT, 2-1/2 in Length, PVC, Clear