Sand Filter Pump SX925 for small Easy Rect. Metal. PrismKeep your pool water clean and sanitized during the summer season with the Krystal Clear Sand Pump. Get better circulation and clearer water thanks to the hydro ventilation technology. It is not only effective, but also comfortable: with the sand that allows excellent filtering and can be replaced every five years, you will save maintenance time and costs The pump has a 4 function valve, an integrated 24 hour automatic timer display to adjust the