3/8 in. (1/2 in. knockout) Flexible Metal Conduit (FMC) Clamp Connector (50-Pack)
https://www.probuilderswarehouse.com/shop/1006232071-0-3-8-in-1-2-in-knockout-flexible-metal-conduit-fmc-clamp-connector-50-pack-1935280
https://www.probuilderswarehouse.com/web/image/product.template/1935280/image_1920?unique=4f6cfeb
Brand: Commercial Electric
Model: FFC1Z-38-50
SKU#: 1006232071.0
Barcode: 316097845
