Zodiac 8034J 2-in-1 Pre-Plumbed Backwash Valve with Unions Replacement for Zodiac Jandy DEL Series D.E. Pool and Spa Filters 2-in-1 Pre-plumbed backwash valve replacement Fits Zodiac Jandy DEL series D.E. pool and spa filter models DEL48, DEL60 Includes unions