Filler devices having an enclosure sub-assembly are provided herein. Filler devices may include at least one of a reservoir and at least one working valve for dispensing the product into a container. Enclosure sub-assemblies may include an enclosure frame, an enclosure member, at least one hinge, and at least one magnetic latch assembly, wherein the at least one magnetic latch assembly comprises a body having a magnet associated therewith, and wherein the at least one magnetic latch assembly is fixedly secured to one of the enclosure frame or the enclosure member upon displacement of the enclosure member from a closed position to an open position, and releasably, magnetically secured to the other of the enclosure frame or the enclosure member upon displacement of the enclosure member from a closed position to an open position.