Filtersorb SP3 Salt-Free Scale Prevention Media (1 Liter)

FILTERSORB® SP3 is an advanced catalytic media designed to prevent scale formation in water systems without the use of salt, chemicals, electricity, or regeneration cycles. Using Nucleation Assisted Crystallization (NAC) technology, the media converts dissolved hardness minerals such as calcium and magnesium into stable microscopic crystals that remain suspended in the water and cannot attach to surfaces.

Unlike traditional ion-exchange softeners, FILTERSORB® SP3 does not remove hardness minerals or add sodium to the water. Instead, it changes the physical structure of hardness minerals, preventing them from forming scale on pipes, fixtures, heat exchangers, and appliances while preserving the beneficial minerals in drinking water.

This environmentally friendly technology provides an effective alternative to salt-based water softening systems and chemical scale inhibitors.

Working Principle

FILTERSORB® SP3 utilizes specialized modified ceramic beads that act as nucleation sites for calcium carbonate crystallization. As hard water passes through the media, dissolved calcium bicarbonate is converted into microscopic calcium carbonate crystals.

These crystals remain suspended in the water and are carried through the plumbing system rather than attaching to surfaces.

The reaction occurring within the system can be summarized as:

Ca(HCO₃)₂ → CaCO₃ + CO₂ + H₂O

This transformation produces stable micro-crystals that cannot form scale deposits.

Features

• Salt-free scale prevention technology
• No regeneration cycles required
• No backwashing required
• No chemicals required
• No electrical connections required
• No drain connections required
• No control valves required
• Simple installation and operation
• Maintenance-free operation
• Does not add sodium or phosphates to the water
• Preserves beneficial calcium and magnesium minerals in drinking water
• Helps remove existing scale deposits over time
• Media life typically 5–7 years

Advantages

• Environmentally friendly “green” technology
• Lower operating cost compared to salt-based softeners
• No wastewater discharge from regeneration cycles
• Maintains natural mineral balance of drinking water
• Prevents scale buildup in plumbing systems and appliances
• Reduces maintenance requirements for equipment

Physical Characteristics

• Appearance: White / opaque solid granules
• Composition: Modified ceramic beads
• Bulk Density: 780 kg/m³ (48.7 lb/ft³)
• Particle Size: 0.55 – 0.75 mm
• Mesh Size: 20 × 35
• Moisture Content: 10 – 25%

Operating Parameters

• Flow Direction: Upflow
• Operating Temperature: 5 – 80°C (41 – 176°F)
• pH Range: 6.5 – 9.5
• Maximum Hardness: 1338 ppm (75 gpg)
• Maximum Salinity: 35,000 ppm
• Maximum Iron: 0.5 ppm
• Maximum Manganese: 0.05 ppm
• Maximum Free Chlorine: 3 ppm
• Maximum Copper: 1.3 ppm

Water must be free of oil and hydrogen sulfide for proper operation.

Applications

FILTERSORB® SP3 is used for scale prevention in a wide range of systems including:

• Residential point-of-entry systems
• Point-of-use systems
• Commercial and food service equipment
• Boilers and water heaters
• Heat exchangers
• Cooling towers
• Coffee and beverage machines
• Ice machines
• Dishwashers and laundry equipment
• Car wash systems
• Industrial process water systems
• Reverse osmosis pre-treatment
• Irrigation systems

The maintenance-free design makes the technology especially suitable for commercial installations where service access is limited.

Performance Benefits

• Prevents scale buildup in pipes and plumbing fixtures
• Protects water heaters, boilers, and heat exchangers
• Reduces maintenance on appliances and equipment
• Improves energy efficiency by preventing heat-transfer scaling
• Helps gradually remove previously formed scale deposits

Certifications

• NSF / ANSI 61 Certified for drinking water applications
• NSF / ANSI 372 Lead-Free compliant
• Tested to multiple international water treatment standards

Packaging

Standard Packaging:

Sold By The Liter

60 liter drum

• Weight per drum:
• 49 kg

• Pallet Quantity:
• 18 drums per pallet

• Gross pallet weight:
• Approximately 965 kg

Additional packaging options may be available upon request.

Important Notes

FILTERSORB® SP3 does not disinfect water and should not be used on microbiologically unsafe water without proper disinfection.

Depending on water quality, pre-treatment for sediment, iron, manganese, copper, hydrocarbons, or hydrogen sulfide may be required for optimal performance.

For new plumbing systems with copper piping, installation is recommended after several weeks of water use to minimize copper leaching effects.

https://www.watchwater.de/filtersorb-sp3-calculator/