Multi-Pleat Series AB-HW-SG
Koch Filter manufactures a complete line of Koch-brand replacement filters for residential and commercial air filtration systems. Each type is offered in two efficiency ranges, MERV 8 and MERV 11, and in all popular sizes.

Multi-Pleat Series AB
Replacement filters for Trion AirbeaPand Air Cup

Multi-Pleat Series HW
Replacement filters for HoneywelPF-series.

Multi-Pleat Series SG
Replacement filters for Aprilaire Space-Gard media.