PT4RD 3M Fire Barrier Pass-Through Device , 2 in, Round (Pack of 6) coolers-and-bottles The cartridge is NIOSH (National

The cartridge is NIOSH (National Institute for Occupational Safety and Health) approved for environments containing certain organic vapors and acid gases

This durable shell offers a large field of view (4

Repair Kits

000 gallons) as an initial treatment

UNICEL 100SQF Predator/Clean & Clear Cartridge Elemeny C-9410

PT4RD 3M Fire Barrier Pass-Through Device , 2 in, Round (Pack of 6) coolers-and-bottles The cartridge is NIOSH (National3M Fire Barrier Pass Through Device PT4RD, 4 in, Round (Pack of 6) Fire stop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479) UL classified L rating, Hot and Cold Smoke Seal (foam smoke seal) Ideal for electrical, data and communication applications Re enterable fire stop device for blank openings, single or multiple penetrants in new or retrofit construction One piece, hinged metal enclosure makes installations fast and easy