A 4 stage RO/DI filtration system, capable of purifying large volumes of water. Ideal for use in hard or soft water areas. This is a powerful static RO system perfect for any size of Window Cleaning business. All Units Come With The Following: Powder-coated steel frame 20" Sediment & Carbon filters Complete with DI Vessel & Resin Optional 20'' or 40'' Membrane size Optional Booster pump for increased water production Inline TDS Meter Pressure Gauge Shut Off Valve Boosted Options Also Come With: Solenoid Auto Shut Off Valve DO I Need Anything To Go With The RO System? The Zero Ro System, is a complete unit for water production, however you will need some accessories to store your pure water and transfer it to your van mounted tank, trolley, backpack or water containers. You can find all the items needed in the accessory pack below. WCW Static RO Accessories Pack Download the FaceLift Zero Instructions Here