BOXER® RD – backwash filter with pressure reducer

The manually operated, easy-to-replace backwash filter BOXER® RD protects domestic water installations in accordance with DIN EN 806-2. The flow-optimised filter is made of high-strength, high-grade technical plastic. Compared to the BOXER® R, it has a continuously adjustable pressure reducer (noise-tested). An integrated pressure gauge controls the water pressure. Otherwise, the BOXER® RD offers all the advantages of the BOXER® R. Installation in horizontal or vertical pipes is possible. Fast conversion to a fine filter BOXER® KD or automatic filter BOXER® AD is possible.

  • Nominal connection diameter from 3/4" to 1 1/4"
  • Incl. pressure reducer
  • Integrated pressure gauge
  • Max. water temperature 30°C
  • Nominal pressure PN 16 bar
  • Filter fineness 0.1 mm (100 μm)
  • DVGW-certified

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® RD complete with 

  • Filter element (filter fabric made of stainless steel) 
  • Connection flange, drain connection
  • Water meter screw connection


  • 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.