The HBL500/HBL750 Series Blank Cover is designed for use with various round extension and fixture boxes. Compatible with models 5737IV, 5737AIV, 5739AIV, 5738IV, 5738AIV, and 5739IV, this cover ensures a clean, professional finish. It features a trade size knockout in the center for convenient access.
Hubbell HBL5736IV RACEWAY, CVR, DIST BX, HBL500/HBL750, IV - HAS 1/2 IN. TRADE SIZE KO IN CENTER -