MSA 10118697 Faceshield Bracket and Visor Clear, Polycarbonate, Dielectric Protection, 17 in Visor Ht G7430297 They have a back opening

They have a back opening for the waste line and a spud atop the fixture for connecting to a flush valve (flushometer)

Low Resistance and Ductility Inspection Hole No

preferring instead to change and/or clean elements according to a fixed time schedule - or based on number of hours of operation

and Combo (#1

Welding Safe No

MSA 10118697 Faceshield Bracket and Visor Clear, Polycarbonate, Dielectric Protection, 17 in Visor Ht G7430297 They have a back openingFaceshield Bracket and Visor, Dielectric Protection Yes, Features V Gard Accessory System Kit containing V Gard Universal Frame for Caps with debris control and V Gard clear, Polycarbonate visor. Does not contain MSA Safety Helmet., Headgear Color Black, Headgear Material Polycarbonate, Headgear Style Full Crown, Includes Frame, Shield, Instructions, Reusability Reusable, Standards ANSI ISEA Z87. 1 2010, Visor Color Clear, Visor Height 17 in, Visor