Spring and fall pollen seasons hit hard in eastern Nebraska and western Iowa — if your HVAC filter isn't capturing pollen at the return, you're redistributing allergens through every room every time the system cycles on. Your family or tenants feel it, and you'll hear about it. 20 x 25 x 1 inch Filtrete Pollen filter, MPR 1000. Sized for larger residential systems — the 20x25 frame covers more filter area than standard sizes, which translates to better dust-holding capacity and fewer restrictions at high-airflow settings. MPR 1000 rating indicates the filter captures pollen, dust mite debris, and fine dust particles more effectively than lower-MPR options. Electrostatic media improves fine-particle capture without excessive airflow restriction. The 1-inch depth fits standard residential fi Stocked at Crofton Lumber and Akron Lumber.