Miller DuraHoist Confined Space Manhole Collar Diameter Size Options:27.5" Ensured quality and lasting value

Ensured quality and lasting value with FDA-grade polyethylene bottles featuring lot numbers and expiration dates

Welted Fingers - protects stitching from burning and abrasion

Can stick to a variety of surfaces - not just for hard hats

Free Air - 980cfm

Much more gentle to the skin

Miller DuraHoist Confined Space Manhole Collar Diameter Size Options:27.5" Ensured quality and lasting valueThe Miller DuraHoist manhole collar is designed to easily and quickly mount to manhole collars. Simply slip the collar into manhole, tank hatch, or other opening and then mount you DuraHoist mast. That's all it takes and your ready to go. The DuraHoist collar is available in a variety of sizes: 17. 5 in. (. 44m) Manhole Collar for use with 18 in. to 20 in. 19. 5 in. (. 50m) Manhole Collar for use with 20 in. to 22 in. 21. 5 in. (. 54m) Manhole Collar