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The SpiroPure SP-RO325 Countertop Reverse Osmosis Filter replacement set includes one sediment filter, one carbon block filter, and one reverse osmosis membrane for convenient countertop RO filter maintenance. The RO water filters replacement set provides a complete filtration experience for the SpiroPure SP-RO300AQ 3-stage Countertop RO systems.
3-Stage Countertop RO Filter Set
- SED Cartridge: a 25 micron sediment filter employs premium polypropylene media to reduce dirt, rust, and other sediment particles from your water to protect your RO system
- CB Cartridge: a coconut shell solid block carbon filter uses activated carbon media to reduce chlorine and other chemicals before they reach your RO membrane
- RO Membrane: a thin-film composite RO membrane filters over 1,000 impurities and total dissolved solids (TDS) down to 0.0001 micron for high-flow water filtration
Specifications:
- Includes Cartridges: 1 SED Sediment filter, 1 CB Carbon Block filter, and 1 RO Reverse Osmosis Membrane
- Application: Cold Water Only
- Filtration Type: Sediment, Carbon, Reverse Osmosis
- Cartridge Life: 6-12 months depending upon cartridge type, water quality, and usage
- Reverse Osmosis Flow Rate 150 GPD standard
- Salt Rejection: 97.5%
- Temperature Rating: 40℉ to 100℉ (4℃ to 38℃)
- Maximum Pressure Rating: 125 PSI
SP-RO325 Effectively Reduces
- Asbestos
- Arsenic
- Bad flavors and odor
- Benzene
- Calcium
- Chlorine
- Copper
- Cysts
- Fluoride
- Heavy Metals
- Lead
- Nitrate/nitrite
- Sediment
- Sodium
- TDS (total dissolved solids)
- Turbidity
- And much more!
I have the SP-RO300AQ RO filter system, and after the first two stages (sediment and carbon) the PPM of the water rises. After the RO stage, it drops as expected, but not as much as I thought. Is the system defective?
PPM is a measurement of the TDS (total dissolved solids) inside of the water. Sediment filters are designed to remove large sediment particles, and carbon filters absorb chemical impurities from water (such as chlorine), and are not designed to filter or reduce TDS at all. In fact, a new carbon filter will increase the PPM of TDS in water as it sheds carbon fines, but this should reduce after a couple of days of use. This is why it is recommended that you flush a new carbon filter, particularly if it is before an RO cartridge as it can cause premature fouling of the RO media. RO membranes, however, are designed to reduce TDS from water, and TDS meters are designed specifically to measure TDS reduction after more in-depth filtration like that provided by RO membranes. After a few days of use and once the carbon fines have all been flushed from the carbon filter, the TDS readings should be at a more desirable level after the RO membrane.
