Silt Sentinel SILTBLOK SSSB500

Designed for medium to large volume, cellular/crate – attenuation systems, ponds, swales and irrigation systems


520mm diameter, single piece – factory built units, delivered to site ready to install. SILTBLOK units feature a robust, impact resistant, twinwall body, with a choice of main channel pipework diameters from 110mm up to 300mm, with extra inlets available on request.

Integrally the SILTBLOK unit has a unique filter barrier, which is made up of three micro porous plastic sections, which are manufactured from 100% waste plastics.

This unique and innovative filter design will drain water very quickly but the structure retains water which helps repel silt. So the screen will not clog or blind, offering an exceptional yet simple sustainable solution. The filter has a permeable area of 50%, so provides exceptional flow, whilst blocking up to 95% of even the finest of silt.


  • Inlet pipework – from 110mm EN 1401 spigot to 300mm twinwall
  • Outlet pipework – from 110mm EN 1401 spigot to 300mm twinwall

Depths available

  • 1030mm

  • 1545mm
  • 1957mm