In-tank softener filter for tank-fed espresso machines
This 37 × 81 mm softener cartridge connects to the intake hose inside your espresso machine’s water tank. Water is drawn through ion-exchange resin before it reaches the pump, so less hardness ends up as scale in the boiler and group.
Capacity and use
It uses a strong cation-exchange resin. Rated output is about 22 L at 18 °fH, 16 L at 27 °fH and 9 L at 45 °fH, so harder water means more frequent changes. Use with water between 0 and 40 °C.
Specifications
- 37 × 81 mm Softener Filter Size: 37 × 81 mm
- 37 × 81 mm Softener Filter Resin: Strong cation-exchange
- 37 × 81 mm Softener Filter Capacity: 22 L @ 18 °fH, 16 L @ 27 °fH, 9 L @ 45 °fH
- 37 × 81 mm Softener Filter Body: White plastic, hose barb
- 37 × 81 mm Softener Filter Water temp.: 0–40 °C
- 37 × 81 mm Softener Filter Made in: Italy
Which machines
Suits semi-automatic machines with a removable tank and a loose intake hose, such as many Expobar, Isomac, Rocket, Rancilio and Gaggia tank models. Check the hose fit before ordering. Compare the 40 × 80 mm softener filter or browse all coffee machine water filters.
Already scaled up? Our coffee machine servicing includes descaling, and we can fit new filters for you.








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