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Detailed Product Description
4"SQUARE EXTENSION RING DEPTH 1-1/2"(Bottom Out)
Material: hot zinc steel plate
4"SQUARE EXTENSION RING DEPTH 1-1/2"(Bottom Out)
The boxes can be installed in walls and ceilings for switches, devices and light fixtures.
1/2" & 3/4" Knockouts;
T:1.0MM/1.2MM/1.5MM/1.6MM;
SIZE: 52.5*22*21( 1:50 )