Laguna Pressure-Flo Pond Filter 4000 with UVC Steriliser

The Pressure-Flo pressurised pond filter provides important water filtration functions that are essential for everyday pond maintenance: mechanical and biological filtration, as well as UVC clarification.

The Pressure-Flo 4000 is designed to work in tandem with a Laguna Max-Flo 2200 (PT8232) solids handling pump. With the filter connected to the pump, water enters the unit through the water inlet. All the water is fed through the highly durable foam filters that intercept and trap dirt cleaning the pond water. This pre-filtered water progresses into the filter bio media material where fish toxins are removed. The pre-cleaned water enters dirt-free passing along an 13W integrated UVC lamp. The pond water is exposed to ultraviolet rays that inhibit the growth of algae. The benefits of having pre-filtered water entering the UVC unit enhances the effectiveness of the UVC lamp, which in turn helps to reduce algae and reduce the risk of fish disease borne bacteria and pathogens. Water finally returns to the pond thoroughly cleansed.

The Pressure-Flo features a revolutionary patented Easy Clean Backwash-Cleaning System that easily cleans the soiled surfaces of the foam filters. This patented system is the only one of its kind. Backwash cleaning can easily and comfortably be completed in a few minutes without opening the lid. This feature ensures that the filter performs at optimal levels for many days and prolongs the time between full maintenance sessions.

The Pressure Flo pond filters can be installed in or above ground.

An easy-to-view cleaning indicator signals when it’s time to perform backwash cleaning.

Pressure-Flo 4000 is for ponds up to 4000L and comes complete with a 13-watt UVC lamp and 3 filter foams.

The Pressure-Flo 4000 comes with a market leading 3 Year guarantee as standard.


  • Suitable for ponds up to 4000L
  • Multi-stage pressurised filtration system
  • Improved, more durable foams remove dirt and debris
  • More efficient UVC bulbs kill algae and eliminate green water
  • Unique backwash cleaning system completed in a few minutes
  • Easy installation either above or below pond surface
  • Runs using 19mm, 25mm or 32mm flexi hose
  • Made in Italy

What's included:

  • 1 x Laguna Pressure-Flo UVC Pond Filter 4000
  • 1 x 13W UVC lamp
  • 3 x filter foams


What's included:

  • 1 x Laguna Pressure-Flo UVC Pond Filter 4000
  • 1 x 13W UVC lamp
  • 3 x filter foams
  • Australian power plug
Brand Laguna
Model # LG171
Barcode # 0015561218108
Shipping Weight 6.7000kg