Aquaculture Systems Technology Endurance 4000 Pond Filter Kit 4000 Gallons – ED-4000-K

Original price was: $1,699.00.Current price is: $1,444.15.

Filter Model – Endurance 4000
Max Pressure (psi) – 5
Filter Volume (cubic ft) – 2
Inlet/Outlet Pipe Size (inches) – 2
Max Flow Rate (gpm) – 25

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The AST Endurance Filter is an advancement of our patented PolyGeyser technology with the addition of many new enhancements and increased performance features.

kits incudes the backwash air pump pressure gauges, preplumbed.

Features Include:

  • Automatic pneumatic backwash enabling the filter to operate for extended periods of time without intervention, saving time and labor
  • Lowest water loss filter in the industry, less than 5% of traditional filters
  • Large sludge storage chamber that concentrates the sludge minimizing servicing needs
  • Superior solids removal and biofiltration in one filter, delivering crystal clear water
  • Low profile design allows for “airlift” water pumping, minimizing energy costs
  • Elegant, simple design with no moving internal parts and no replacement media ever required, guaranteeing trouble free operation
  • Units arrive pre-filled with bead media whichnever needs replaced

Click Here for Instruction Manual

Click Here for Endurance Quick Installation Guide

Click Here for Endurance Configuration Instructions

Click Here for Endurance Installation Assembly

Click Here for Endurance Operation & Backwash

Click Here for Endurance Specifications

Additional information

Filter UV Option


Pond Product Type

Pond Filtration

Filters Max Pond Size Range



Filtration Type

Filter Max Pond Size