The Hayward Pool S200KT Dome Wrench is an aftermarket accessory designed for in-ground pools. Manufactured by JSP Manufacturing in the United States, this wrench is specifically made for the Hayward S200K and S240 Sand Filters. The PP-Wrench-S200KT model ensures a secure and easy grip for maintenance tasks, making it a convenient tool for pool owners looking to keep their filtration system in top condition.