Birdscreen, Concentric Ring Type, Zinc Plated Finish, Wire Spacing OC 3/4 In., Protects Fan from Birds, Small Ojects and Debris, Use w/Dayton Ventilators 1MBE9, 1MBF1, 2RB66, 3ATT8, 3ATT9, 3ATU1, 3ATU2, 3ATU3, 4HZ48, 4HZ49, 4HZ50, 4HZ51, 4HZ52, 4HZ53, 4HZ54, 4HZ55, 4YY16, 4YY17, 5DVL9, 5DVN0, 5DVR3, 5DVR4, 5PV06, 6KWH7, 6KWJ0, 6KWJ1, 16D524, 16D525
- Protect fans from birds, small objects, and debris. Zinc-plated for durability; passed 24-hr. salt spray test11. Concentric and precisely sized to eliminate rattling.