For feeding raceway, has two concentric 1/2 and 3/4 trade size KOs.

Manuals & Documentation
Catalog Number ALA4810B2
Manufacturer Legrand-Wiremold
Brand Legrand-Wiremold
Country of Origin Mexico
Made in USA No
RoHS URL http://www.ideadigitalcontent.com/files/11311/ROH_Legrand_ROHS_statement.pdf
UPC 786776523713
GTIN 00786776523713