Pentair 23900-0039 Brass Vertical Rod Replacement for select Pentair D.E. Pool and Spa Filters Vertical Rod Replacement Used to hold together the DE filter grid assembly in the Sta-Rite Pentair systems Fits Pentair D.E. pool and spa filters models DEP36, DEP36-4, DEP36-01B, DEPB36, DEPB36-IN Made of brass material Measures 20-5/8-inch length by 3-inch diameter