3M™ SecureFit™ Safety Helmet, X5007VX-ANSI, Orange, vented (Case of 4) Hi-Vis Safety Apparel It has a 3/8 inch

It has a 3/8 inch inner diameter and is equipped with MPT on both ends to accept 1/4 inch FPT fittings

and contamination

including petrochemical

and smart charger

Designed to help workers maintain respiratory safety while improving comfort during extended wear

3M™ SecureFit™ Safety Helmet, X5007VX-ANSI, Orange, vented (Case of 4) Hi-Vis Safety Apparel It has a 3/8 inchThe 3M SecureFit Safety Helmet X5000 provides comfort and security for workers in a variety of situations because it features climbing helmet inspired design that meets occupational safety requirements, works with a variety of 3M faceshields, earmuffs and other accessories, and the suspension incorporates exclusive 3M patented Pressure Diffusion technology.