Manhole Housing Lifter Product Type Manhole Housing Lifter Working Load Limit 10 000 lb Minimum Manhole Diameter 92 1/2 in Maximum Manhole Diameter 92 1/2 in Maximum Load Thickness 6 in Bail Inside Length 5 1/2 in Bail Inside Width 2 3/4 in Bail Thickness 3/4 in Minimum Headroom Not Applicable Maximum Headroom 35 in Number of Legs 2 Bail Height 3/4 in Standards ASME