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OSHA's Nationally Recognized Testing Laboratory (NRTL
Hose and Hose Assemblies for Dispensing Gasoline: UL 331: Strainers for Flammable Fluids and Anhydrous Ammonia: UL 346: Waterflow Indicators for Fire Protective Signaling Systems: UL 347: High Voltage Industrial Control Equipment: UL 353: Limit Controls: UL 355: Cord Reels: UL 360: Liquid Tight Flexible Steel Conduit: UL 363: Knife Switches: UL 365