The solid-core clean-up dryer was developed for use in a system suction line. The compact design incorporates a large outside diameter shell, which results in a shorter lay-in length and a larger core, which provides a greater filtration area for maximum operating efficiency. The core material has controlled porosity which effectively removes and holds a maximum amount of contaminants with a minimum of pressure drop. It collects and holds inorganic acids and other harmful contaminants from a motor burnout. This binding process protects the core from acid decomposition. Access valves on both the inlet and outlet sides make it easy to measure pressure accurately. Occasionally, enough contaminant matter may collect in the filter core to cause a slight pressure drop. The access valves on the SLD make it easy to determine if a pressure drop exists and to measure the amount of the drop. The original DSLD, solid core, XH-9 molecular sieve desiccant suction line filter dryer. High acid capacity. Low pressure drop - exceptionally high flow rates. Designed for system clean-up. 500 hr salt spray protection. Shortest system cut-out lengths allow installation in tight areas. Two access valves simplify pressure drop measurement. Flare or solid copper sweat fittings.