ScaleArmor ROCK limescale filter Big Blue 1″: salt-free, no electricity or wastewater. Certified IAPMO Z601, 86 % efficiency. €395.00.

The ScaleArmor ROCK limescale filter Big Blue 1″ is a whole-house limescale protection system that, according to the seller, works mechanically with a patented filter media that prevents limescale crystals from clustering. Hardness minerals are not removed from the water. The system needs no regeneration, electricity, salt or wastewater. The page states it is certified to IAPMO Z601 with 86 % scale-prevention efficiency; no certificate document is linked, so ask us for it if you need proof.

The ScaleArmor ROCK limescale filter does not remove calcium and magnesium; the media instead prevents limescale crystals from forming deposits. The housing is made of PET, PP and SEBS with antimicrobial technology, according to the seller. The seller also names cleaner taps and showers, softer laundry, longer appliance life, fewer failures and lower energy use; the page gives no measurements for these benefits. It is presented as a more eco-friendly alternative to ion-exchange softeners.

The package contains the housing, cartridge, wall bracket, key, O-ring, lubricant and instructions. The kit is described as complete, but the media must be replaced after up to 24 months at an extra cost: the ScaleArmor ROCK refill costs €231.80 incl. VAT. The page links a datasheet titled "Rock-Refill-Cartridge" (PDF), which suggests it covers the refill. The filter is compatible with the MyAtlas app for monitoring and refill reminders.
| Certification | IAPMO Z601, 86 % efficiency (as stated) |
| Max. flow | 10 GPM / 2270 l/h |
| Max. water hardness | 500 ppm (50 °fH) |
| Working pressure | 0.5–8.3 bar |
| Water temperature | 4–45 °C (may briefly reach 75–80 °C) |
| Housing | PET, PP and SEBS |
| Media life | up to 2 years |
| Maintenance | not required (per the page) |
| Dimensions / connection sizes | not stated on the page |

The ScaleArmor ROCK limescale filter is mounted on the wall with the supplied bracket; instructions are included. The page gives no dimensions or connection sizes, so please check them with us before buying. For smaller needs, see the ScaleArmor POP or the FOSE200; for whole-house filtration, the Big Blue 20BB triple filter. Call us at +386 41 567 794 for advice.
Price and delivery: €395.00 incl. VAT (€323.77 excl. VAT). The product is in stock. The page gives no delivery terms or warranty; ask us. Viewing and pickup in Murska Sobota by prior arrangement (one day ahead).
The media of the ScaleArmor ROCK limescale filter lasts up to 24 months. One refill (€231.80 incl. VAT) equals one cartridge.