Allen Head Fitting - For convenience of installation, an Allen head fitting can be furnished on a NEMA 1 outlet box. This allows installation with a 3/8" Allen wrench rather than the wide jaw wrench required to fit the large hex nut on the NEMA 1 box.UL Listing - All standard Bottom-Mounted immersion heaters, with or without a low water cutout, are Listed by the Underwriters Laboratories under Reference E23541.
|