Jandy JS100-SM 30" JS Side Mount Sand Filter are available in two sizes and come with clean/dirty indicators on the pressure gauge. Also comes with extra-large 2'' sand and water drain ports, and an ergonomic filter lid, making service and winterization a breeze. As integral components of any Versa Plumb System, the JS Sand Filters are both versatile and efficient. Designed with an extra-deep sand bed and dual diffusers for improved filtration, the JS Side Mount Filter’s performance is unrivaled. Even the installation is made easy with three Jandy backwash valve kit options: 2-in-1 Never Lube® Valve, Slide Valve, or the Multi-Port Valve.