3.3: Slow Dissolve Polyphosphate Cartridges
Polyphosphate media helps prevent lime and scale deposits from water and is effective for treating corrosion and iron problems. The slow dissolving beads dissolve at a controlled concentration to inhibit scale formation and corrosion. A concentration level of 0.5 ppm to 5.0 ppm polyphosphate is typical for scale and corrosion treatment.
Features:
- Compact, easy to use polyphosphate cartridges
- Prevents scale build-up, inhibits corrosion, and controls iron
- Slow dissolving polyphosphate media in small glassy beads
- Fits standard size and large diameter size housings
Applications:
- Potable drinking water systems
- Water coolers, coffee machines, and ice machines
- Cooling and refrigeration equipment
- Pre-treatment and post-treatment filter on a multi-stage configuration
- Residential, commercial, and industrial applications
Materials of Construction:
- Filter Media: Polyphosphate spheres
- Outer Shell and End Caps: Polypropylene
- Post-Filter & Expansion Pads: Polypropylene
- Gaskets: Nitrile
- Temperature Rating: 40-125°F

Mixed Bed Deionization (DI) Resin Cartridges
Item | Filter Size* | Media | Media Weight | Filter Life* | Box Qty |
SP-10-PHOS | 2.5” X 10” | ALL POLYPHOSPHATE BEADS | 3.0 LBS. | 30,000 ppm Phosphate, at 1.0 GPM | 20 |
SP-10-PHOS/GAC | 50% POLYPHOSHPATE BEADS (1.5 LBS.) |
50% GAC (0.5 LBS.) |
15,000 ppm Phosphate, at 1.0 GPM | ||
SP-20-PHOS | 2.5” X 20” | ALL POLYPHOSPHATE BEADS | 6.0 LBS. | 60,000 ppm Phosphate, at 2.0 GPM | 12 |
SP-20-PHOS/GAC | 50% POLYPHOSHPATE BEADS (3.0 LBS.) |
50% GAC (1.0 LBS.) |
30,000 ppm Phoshpate, at 2.0 GPM | ||
SP-10BB-PHOS | 4.5” X 10” | ALL POLYPHOSPHATE BEADS | 8.0 LBS. | 80,000 ppm Phosphate, at 3.0 GPM | 6 |
SP-10BB-PHOS/GAC | 50% POLYPHOSHPATE BEADS (4.0 LBS.) |
50% GAC (1.5 LBS.) |
40,000 ppm Phoshpate, at 3.0 GPM | ||
SP-20BB-PHOS | 4.5” X 20” | ALL POLYPHOSPHATE BEADS | 16.0 LBS. | 160,000 ppm Phoshpate, at 5.0 GPM | 6 |
SP-20BB-PHOS/GAC | 50% POLYPHOSHPATE BEADS (8.0 LBS.) |
50% GAC (3.0 LBS.) |
80,000 ppm Phosphate at 5.0 GPM |
* Specifications are nominal, intended for reference only. Filter life depends on operating conditions.
^ Suggested list price FOB Houston, Texas. Actual cost may vary. Subject to change without notice. Call for items not listed.