Pentair Meteor Filter System Drain Plug Assembly

The Pentair Meteor Filter System Drain Plug Assembly (part number 150055) is a specialized external plumbing configuration engineered specifically for Pentair Meteor, Sand Dollar (SD series), and Sta-Rite Cristal-Flo II top-mount sand filtration systems manufactured after October 2004. Injection-molded from a heavy-walled, high-impact polymer composite, this integrated drainage kit combines a threaded drain plug cap, an internal screen or sand-retaining baffle, and a durable rubber sealing washer. Its primary operational role is to provide a clean, secure port at the absolute base of the vertical filter chassis, allowing pool owners and service technicians to smoothly evacuate water from the tank vessel during winterization or routine maintenance without losing the dense media inside. When threaded tightly into the lower filter tank wall, the assembly compresses its inner gasket to form an absolute airtight and watertight pressure boundary capable of safely containing continuous hydraulic flow rates and operating pressures up to 50 PSI without slow weeping or dripping. Designed to withstand relentless outdoor UV weathering, severe seasonal temperature shifts, and constant chemical exposure from pool water sanitizers like chlorine, bromine, and winterizing acid shock treatments, this durable plug prevents sudden pressure or water loss. Due to its streamlined, hollow, and multi-component plastic architecture, this complete drain plug assembly carries a nominal product and shipping weight of approximately 0.16 pounds (about 2.5 ounces).