The 255 LPH External Inline Pump GSL392 (GSL392) is a compact, external inline pump designed to deliver 255 liters per hour with pressure capability. It comes with a kit to simplify installation and integration into a variety of systems. This pump provides a reliable solution for circulating water in inline configurations without elevating heat inside the main reservoir. Key benefits Delivers a steady 255 LPH flow for small to medium setups, supporting reliable circulation and filtration. External inline design enables flexible mounting and easier maintenance, with installation occurring outside the main reservoir. pressure performance supports pushing water through filters, reactors, tubing runs, or spray features. Kit included to streamline setup, allowing quick connection with compatible tubing and fittings. Key attributes Model: GSL392 (also listed as GSL392) Flow rate: 255 LPH Pump type: External inline pump Includes kit for installation and connection Applications and use cases Aquarium filtration and circulation: use in inline filter loops to maintain steady water movement through filtration media. Hydroponics and nutrient circulation: integrate into reservoir loops to ensure consistent delivery of nutrient solution through tubing and delivery lines. Water features and fountains: drive flow through spray bars, nozzles, or small fountain setups for decorative displays. Notes on compatibility and installation Designed for inline installation in plumbing lines where an external pump is preferred. Includes a kit to facilitate setup; use with compatible tubing and fittings as included in the kit. This pump offers a practical, professional solution for adding reliable, pressure water flow to inline systems while keeping installation straightforward and maintenance accessible.