Fine filter BOXER® K – protects the domestic water installation

The manually operated fine filter BOXER® K protects domestic water installations in accordance with DIN EN 806-2. The fine filter is made of high-strength, high-grade technical plastic and is easy to clean. The integrated 12-part date indicator reminds you to replace the filter element (DIN EN 806-5). Replacement is easy thanks to the ergonomically designed one-hand turning handle. The BOXER® K does not require a drain connection. The rotatable connection flange enables installation in horizontal or vertical pipes. The basic equipment of the BOXER® K includes an 80 µm filter element. Filter elements with 50 µm, 20 µm and 5 µm are optionally available. Thanks to the modular system, quick conversion to a backflow filter BOXER® R or automatic filter BOXER® A is possible.

  • Nominal connection diameter from 3/4" to 1 1/4"
  • Integrated date indicator
  • Rotatable connection flange
  • Max. water temperature 30°C
  • Nominal pressure PN 16 bar
  • Filter fineness 0.08 mm (80 μm)
  • DVGW-certificate

Installation requirements

Please note local installation directives, general guidelines and technical specifications. The installation site must be frost-proof and the filter protected against chemicals, dyes, solvents, vapours and direct sunlight.

Scope of supply

BOXER® K complete with

  • Filter element with 80 µm
  • Connection flange 
  • Water meter screw connections and connection material


  • Filter differential pressure monitoring
  • Insert with non-return valve 1"
  • Set for conversion to another model in the BOXER® series

For information on inserts for replacement of an older Grünbeck filter with a BOXER® and technical details, see the product data sheet, which is available to download.