Zurn ZDF-6152XL is a recess mounted toilet flush valve designed to be connected to mains pressure water supply. It is also available as a non potable valve where water is supplied from a dedicated supply tank or from a pressurized recycled water feed. The 2 button plate allows the user the option of flushing 3 or 6L. Flush volumes are consistent irrespective of pressure variations. The product is specified in 2 parts: the inwall valve is common to all versions - ref ZDF6152XL (L). The customer must then chose the type of face plate based on the Tech Data sheet (see Downloads)

Correct pipe sizing is essential to flush valve installation. All mains pressure flush valves (ZDF-6152XL) require flow rates of 90l/min at dynamic pressures of 150 - 500kPa. Valves fed from a non-potable source  are available (ZDF-6152L) but restricted to a dynamic pressure of 100 - 150kPa. All pipework should be designed by a suitably qualified person to ensure correct flow rates and pressures are available. Stated pressures are dynamic, not static.

  • Category
    Toilet Flush Buttons
  • Brand
  • Type of use
    Commercial and Residential


ZDF-6152XL - Mains pressure valve only - requires faceplate to be specified.
ZDF-6152L-25 - Non potable valve with 25mm isolator. Pressure range 100 - 150kPa.


ZDF-P - 150 x 210 satin stainless steel plate with push panel.
ZDF-PA - 345 x 345 as above but with stainless steel access panel
ZDF-PC - 330 x 330 as above but with stainless steel access panel with concealed fixing.
ZDF-B - 120 x 150 stainless steel plate dual flush round buttons
ZDF-BA - 340 x 340 as above but with stainless steel access panel


...SP - Standard panel but with polished stainless steel.
...SW - Standard satin panel with raised white nylon push plate and braille (for accessible use).
...SWB - As above SW but with blue raised nylon push plate and braille (for accessible use).

MacDonald Industries
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New Zealand's Leading Commercial Bathroom Products Supplier

Bathrooms for public buildings have a unique set of requirements.  

Unlike residential environments these bathrooms can be subject to intermittent, intensive use by a range of diverse users over short and long periods of time. Solutions need to provide robust, efficient and cost effective whole-of-life outcomes. Hydraulic design with the appropriate behind and front-of-wall fittings are vital for the long term viability of a commercial bathroom. 

With over 55 years experience in the design, specification, supply and installation of bathrooms for hospitals, schools, prisons, shopping malls, swimming pools, marae's, public buildings, sports stadiums, airports and public toilets Macdonald Industries has seen it all.  

Our Technical Consultants are available to support Architects, Engineers, Plumbers and installers through the most complex of installations.

Our customers demand;

- reliability
- recognised performance
- efficiency
- robustness and
- cost effectiveness.

MacDonald Industries manufacture bespoke solutions such as Warden, Waterguard and Solo electronic water controllers and choose their supply partners from leaders around the world such as Delabie, KWC-Franke, RAK, ASI, WISA and Zurn Wilkins .