The TR-3712N is a High Efficiency Particulate (HE) filter for the TR-300 PAPR. Case of 5 filters. Part number was previously TR-3710N-5. Same filter, new number. 2 boxes of 5 filters each available at this price.
This is a stock item, and is normally available for immediate shipment.
3M ID: 70-0715-6366-5