ALLEGRO INDUSTRIES NV20-00H Nova 2000 Helmet w/ Nylon Cape, Breathing Tube and Heater, High Pressure, 1 Each subcategory_Fit Test 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

Ideally used with Speedgla Welding Helmets SL

uniform finishes

The 3M Scotchgard Protector Anti-Fog Coating resists fogging longer than traditional antifog coatings

3M™ 2096 Particulate Filter

ALLEGRO INDUSTRIES NV20-00H Nova 2000 Helmet w/ Nylon Cape, Breathing Tube and Heater, High Pressure, 1 Each subcategory_Fit Test It has a 3/8 inchAllegro HP Nova 2000 Helmet w Heater Lightweight pillow foam padding ensures the helmet always sits comfortably on your head. The padding is hook and loop mounted and easily removed for hygienic cleaning. The large wrap around double lens allows optimum vision without irritating side glare.