This frame works with any MSA slotted or non-slotted helmet and features our unique sloped design to help material slide off the frame and out of site. Can be used with earmuffs, half-mask respirators and other personal protective equipment. Stays securely on the cap, thanks to the heavy-duty, flat, rubber strap. The elevated temperature model withstands temps up to 350ºF (176ºC). • Sloped design helps material easily slide off the frame • Pivot location for use with earmuffs, half-mask respirators and more • V-shaped alignment guides for easy installation • Replaceable, optional debris control creates tight seal between frame and helmet • Heavy-duty, flat, rubber strap for easy and secure placement of frame on cap • Non-metal construction for use in electrical applications • ET frame is tested to temperatures of 350˚F (176.7˚C), reducing warping, cracking or crazing. • Fits MSA slotted or non-slotted helmets Approvals ANSI/ISEA Z87-1:2010 / CSA Z94 / EN166:2001 389 BT / EN1731-F / AS/NZS 1337