Complete 100 GPD RO/DI system with inline TDS meter plus 3 new re-fillable DI cartridges, 2 new packets of nuclear grade color changing DI resin, apprx 50ft tubing, 2 x 32 gallon Brut trash cans one fitted with a float switch. Easy to install using included quick-connect fittings. RO output for drinking water. Inline TDS meter monitors input and output of DI filter. Only $100