The Everfilt® 4" New Style Seal Valve is our latest backwash valve seal available. Designed with durability, performance and efficiency in mind, with 30% more contact area for a tight seal, even after years of abuse. Molded construction around a 316SS disk, reduces internal parts creating a bullet proof improvement over previous valve seal offerings. This part is used in Everfilt® 4" New Style Backwash Valves.