The 2-1/2" SILICONE Butterfly Valve Repair Kit from SANITUBE includes one silicone seat and two nylon stems, designed for easy maintenance of your butterfly valves. This kit ensures that your valves maintain optimal performance and reliability in sanitary applications. The silicone material provides excellent chemical resistance and durability, while the nylon stems offer strength and flexibility. This repair kit is essential for extending the life of your butterfly valves, ensuring they operate efficiently and effectively.