Fan Kit, For Use With Grainger Item Number 40HY75, 40HY78, 40HY81, 40HY84, 40HY86, 40HY90, 40HZ08, 40HZ18, 40HZ35, Compatible with Manufacturer Part Number Mfr. No. DG1-32011FB-C21C, Mfr. No. DG1-323D7FB-C21C, Mfr. No. DG1-327D8FB-C21C, Mfr. No. DG1-342D2FB-C21C, Mfr. No. DG1-343D3FB-C21C, Mfr. No. DG1-344D3FB-C21C, Mfr. No. DG1-345D6FB-C21C, Mfr. No.DG1-326D6FB-C21C, Mfr. No.DG1-347D6FB-C21C, For Use with Series PowerXL, For Use With DG1 Drives, Mounting Type Screw