Mortex universal plastic drip pan for air conditioning A-coils. Outside measurement is 18" wide x 20.5" deep. Inside opening measures 11" x 17.5". 4 drain connections (2 on right and 2 on left). 3 drain connections are shipped plugged but can easily be changed. Drain tubes not included. Call if tubes needed. We have several sizes available so be sure to measure your pan before ordering.