3M 2521-MF Fibrlock Multi-Fiber Splice Insert

3M Fibrlock Multi-Fiber Splice Insert 2521-MF is for use in the 2522 and 2523 fiber splice organizer trays. These trays store and protect discrete and mass, mechanical and fusion fiber optic splices in closures and fiber distribution units. Inserts are made of polypropylene and have a four connector capacity.