We will ship part#: DMM-B-44/100, which is the same as DMM-44/100.This FUSE is 440mA, 1000V, FAST ACTING.This fuse is also called/known as Fluke fuse 440mA 1000V, Fluke fuse DMM-44/100, BUSSMANN Fuse DMM 44/100 or BUSSMANN Fuse DMM-B-44/100, or Fluke fuse 943121, Fluke fuse 203411 or Fluke fuse 203414. This fuse is non returnable.