Kit Includes:(1) OmniPure® Q5515P filter - Block GAC 1 Micron Removes Lead, CTO/Cysts with Scale Inhibitor, 1,250 gal, 2.5" x 10" Optional 2-Stage includes (1) 5 Micron Sediment Prefilter for heavy sediment reduction (not shown). (1) Valved Head Assy...