Scientific Dust Collectors' Supersonic Pulse Jet Horizontal (SPJ-H) Collector is designed for low headroom applications, similar to the SPJ-B Collector. It utilizes the patented supersonic nozzle cleaning system as well as a high-side inlet so that the heavier dust falls out of the air stream. These features allow the collector to operate at higher air-to-cloth ratios, lower pressure drops, and provide longer filter life. This special design uses horizontal bags that are accessed from the clean side of the unit. This is a specialty application unit where the dust is large and stringy, but there is a low headroom requirement.