MSHA Fire Hose AssembliesCONSTRUCTION:Chloroprene>TEMPERATURE:-25°F>BRANDING:Jason logo 300 PSI Test, MSHA # 18-FHA08001.APPLICATION:Underground>FEATURES:• Meets MSHA rating 18-FHA08001, therefore resistant to fire.• Rolls flat for easy storage.• Couplings are anodized aluminum M x F expansion ring with rocker lugs.• 100% polyester jacket, which is free from defects, twists, knots and irregularities.Working pressure is temperature dependent.