Danco 35711W O-Ring, 5/16" x 1/2" x 3/32" General Purpose - Acrylic 2 and 3 hour through

2 and 3 hour through penetration firestop systems: W-L-3110

A-19 or B13 60 watt max

1/4'' x 1'' OD

invent fans reduce air leakage by up to 50% compared to competitive models

Danco 35711W O-Ring, 5/16" x 1/2" x 3/32" General Purpose - Acrylic 2 and 3 hour throughHighlights: Size: 5 16"ID x 1 2"OD x 3 32" wall thickness #83 Color: Black For faucet repair Resistant to water swell, steam and abrasion Made from compound Nitrile butadiene rubber Polybagged Warning: This product can expose you to chemicals including 1,3 Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.