| Refillable clear inline housing, pre-filled with DI (de-mineralize) resin , part no. 215 This filter is compatible with any RO or RO+DI systems To view a list of replacement filters for WaterGeneral systems, go to FilterDirect.com Store The clear housing cap can be taken off, so you can refill the DI resin as needed, also using the color changing DI resin, the color change can be observed. On average it is able to process about 500 gallons of RO water (may vary depending on many factors). Nuclear grade with color indicator: for production of demineralized water of high purity, silica free. When the resin is used up, the green color resin will change to brown color. It will give you 0 ppm TDS, Conductivity attainable less than 0.1uS/cm or resistivity of close to 18 meg.ohm Dimension: 2 x 10" Input/output size: 1/4" FPT ** If you need UU-clips to attach this filter to the membrane housing, 2" to 2 1/2" UU clip is $3 each |