#50 Main Burner Orifice - LP/Butane for GRO40-L2, GRO40-L3, & GRO40-L9 brooders (part #27 in diagram 1), as well as GRO40-CR-N5 & GRO40-CR-L5 brooders (part #23 in diagram 2).
This Gallagher Standard Insulator works with T-Posts. Large flange prevents arcing. Solid claw holds electric fence wire. Snaps on post. Molded of high density polyethylene with UV inhibitors for all-weather performance. Sold in packs of 25.