Parker LoadTECH MERV 14 Rigid Cell Filter — 20 × 20 × 4 in, Single Header (Case of 3)

Parker LoadTECH MERV 14 rigid-cell air filters with synthetic E-Pleat media and a 3/4-in single header on the air-entering side. Model PLT4-M14-13-PH, Parker part 1136513. Sold as one case of three filters; quantity one is one case. Each filter is nominal 20 × 20 × 4 in and actual 19-3/8 × 19-3/8 × 3-3/4 in. Rated airflow 1,400 CFM per filter. Verify the header, fit and equipment requirements…