Description
Koch Filter 102 091 003 MULTI PLEAT XL11 SC 1" Semi Standard Capacity MERV 11 Pleated Panel Filter Size 12x25x1 4058143 Koch Filter 102 031 009 Multi Pleat XL8 High Koch Filter 102 031 009 Multi Pleat XL8 High Capacity 1" Semi Standard Size 18"x18"x1" The first stage (pressure reducer) has three HP ports and five MP ports to give flexibility in configuration