24" Lid & Riser for the Grey Flow PS-Builders Kit - $250
Designed with exceptional industry standards for durability and longevity, the HDPE riser material features non-corrosive materials. That ensures that the riser and lid is protected with the guarantee of trouble-free service for a lifetime. In addition, it features a unique interlocking design that eliminates the need for any sealants while still maintaining a tight seal. That means there's no need to fear future repairs or replacement due to deteriorating sealants.