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 will free up the users hands for safer and more accurate layout marks

Repair Kits

filter is made of fiberglass-reinforced polypropylene for superior strength and reliability

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