Pleat Optimal pleat Minimum pressure Pleat shape Filter media height, inch count, #/inch drop, Pa Triple EM 3 78.6 Rectangular EM+NL 5 45.3 0.875 Triple EM 3 63.2 Triangular EM+NL 5.5 40.5 Triple EM 2.5 42.6 Rectangular EM+NL 3.5 29.3 1.875 Triple EM 2.5 36.9 Triangular EM+NL 4 26.3
Pleat height, inch Pleat shape Filter media Optimal pleat count, #/inch Minimum pressure drop, Pa 0.875 Rectangular Triple EM 3 78.6 EM+NL 5 45.3 Triangular Triple EM 3 63.2 EM+NL 5.5 40.5 1.875 Rectangular Triple EM 2.5 42.6 EM+NL 3.5 29.3 Triangular Triple EM 2.5 36.9 EM+NL 4 26.3