The Hayward Drain Plug and Gasket SPX4000FG is a reliable replacement for your Hayward Northstar, Booster, or Tristar Variable Speed Pool Pump. Its durable O-Ring ensures a tight seal, preventing leaks and keeping your pool running efficiently. Compatible with Hayward's EcoStar and EcoStar SVRS Variable Speed Pool Pumps, this drain plug is a must-have for any pool owner looking for reliable performance.