Sta-Rite PLM150 System:2 Modular Media PLM Series Pool Filter, 150 Square Feet, 56-150 GPM Aboveground pools, inground pools and hot tubs Modular DE Filter Durable two-piece tank housing constructed of rugged ABS thermoplastic to ensure a long-lasting tank life posi-ring closure provides safe, fast access to tank internal Complete media coverage combined with shallow pleats means greater dirt holding capabilities, resulting in longer filter cycles and less cleaning Measures 20-inch length by 29-inch height by 21-inch width