(3) D.I. Exchange Vessels. Model No. EES-DI-1. Replacement Resin Pkg No. EES-100PKG. 1 CU. FT. (2) Hurricane Vessels. Model No. HRF-155-5LP. Replacement Cartridge No. ERF155. Cartridge Quantity = 1. 1 HP Pump. 230 Volt, 3 PH. 50 PSI Max. 1-1/4" Inlet, 3/4" Outlet.