Manhole Housing Lifter Product Type Manhole Housing Lifter Working Load Limit 15 000 lb Minimum Manhole Diameter 101 in Maximum Manhole Diameter 101 in Maximum Load Thickness 6 in Bail Inside Length 7 in Bail Inside Width 4 in Bail Thickness 7/8 in Minimum Headroom Not Applicable Maximum Headroom 41 in Number of Legs 3 Bail Height 7/8 in Standards ASME