Built for poured concrete decks in high-rise construction, these Hubbell steel concrete rings install on wooden or steel forms and sit flush with the concrete after form removal. Flat sides provide reliable locknut contact, while waxed fixture ears help keep concrete out of the threads. External nailing ears and a removable top cover support installation and access before the pour.

Specifications

Product Type Concrete ring / box
Application Poured concrete decks (floors) in high-rise construction; installs on wooden or steel concrete forms
Size 4 in.
Actual Depth 4 in.
Capacity 48 cu. in.
Material Steel
Construction Welded
Side Knockouts 4 × 1/2 in., 2 × 3/4 in., 2 × 1 in.
Raised Ground Screw Yes
Wiring System Conduit
Bracket Type No bracket
Gangable No
Plaster Ears No
Fixture Ears Internal, waxed to protect threads from concrete
Mounting Ears External ears for nailing to wooden forms
Top Cover Removable for before-pour work
Weight 1.04 lb
Certification CSA certified
Pack Quantity 10
UPC 626463002193