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Stiebel Eltron Scale TAC-ler Plus Water Conditioner

SKU 692500
Original price $449.00 - Original price $449.00
Original price
$449.00 - $449.00
Current price $449.00
in stock

The Scale TAC-ler water conditioner is compatible with all tankless and conventional
tank-style water heaters. Scale TAC-ler is installed on the cold water inlet of the
water heater, where it treats the water entering the water heater. It will provide
protection for flow rates up to 6 gallons per minute.

If water hardness exceeds 7 grains per gallon (GPG) or 120 mg/l (PPM) hard water treatment should be considered. If hardness exceeds 12 GPG or 200 mg/l (PPM), treatment is strongly recommended. Water heaters with existing mineral scale build-up should be treated with the Flow-Aide de-scaling system to restore original performance. Scale TAC-ler will prevent future mineral build-up.


  • Protects from harmful hard water scale
  • Protects manufacturer's warranty coverage
  • Protects equipment investment
  • Ensures optimal performance and efficiency
  • Maintains water pressure and flow rates
  • Does not add chemicals to the water 
  • Does not change the state, smell, or feel of the water
  • Environmentally friendly
  • Simple installation
  • No daily maintenance
  • No salt, backwashing, chemical regeneration, or nine discharge 
  • Does not remove beneficial minerals 
  • Ideal for all tankless or tank-type water heaters
  • Built-in sediment pre-filter

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Stiebel Eltron Accessories Brochure

Item number 692442
Filter typeTemplate Assisted Crystallization (TAC) 
Max. treatment service flow rate6.0 gpm (22.7 l/min)
Max. flow rate through device10.0 gpm (37.85 l/min)
Max. water pressure90 psi (6.2 bar)
Min. water pressure30 psi (2 bar)
Temperature range40–100 °F (4–38 °C)
Dimensions (H x W x D)24½˝ x 181 /8˝ x 8˝ (622 x 460 x 203 mm)
Connection type¾˝ NPT
Valve TypeBall
Approx. cartridge life2 years
pH range6.5–8.5
Optimal hardness level for treatment0.4-1.8 gpg (7-30 mg/l)
Max. treatable hardness level75 gpg (1,283 mg/l [ppm])
Max. acceptable levels of contaminates in incoming water

Chlorine: < 3 mg/l (ppm)

Hydrogen Peroxide: < 0.5 mg/l (ppm)

Iron: < 0.3 mg/l (ppm)

Manganese: < 0.05 mg/l (ppm)

Copper: < 1.3 mg/l (ppm)

Hydrogen Sulfide (H2S): must be removed

Polyphosphates and Oils: must be removed

Water treatment certificationNSF/ANSI 61


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