Bunn 20138.1000 paper filters are a important part of brewing great coffee. Bunn 20138 coffee filters are specifically designed to fit Gourmet-Iced Tea, System II, Dual, Dual SH, 1.5 gallon urns commercial coffee makers. Overall Measurement x Base (inches): 13 3/4 x 5 1/4 Filters are packed 500 per case.