20 x 25 x 1/2 MERV 4 Polyester Filter SKU: S-PYM4-2025.5 MERV Rating: 4 Availability IN STOCK Job Tag PO Number Enter / Select PO Number Add to Cart $7.60 SpecificationsNameS-PYM4-2025.5Product TypeMERV 4 PolyesterDisplay Name20 x 25 x 1/2 MERV 4 Polyester FilterMERV Rating4Efficiency30.0% Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review