Type B32
The KSH Type B32 concrete bushing (plastic sleeve) is embedded during the casting of concrete filter bottoms to form precise openings and receptacles for filter nozzles. The sleeve ensures that nozzle ports are accurately positioned and structurally supported. Its length can be freely selected to match the thickness of the filter base or soil cover, giving you flexibility in design. Manufactured by KSH Germany and supplied exclusively in New Zealand by Absorb It Ltd, the B32 sleeve is a dependable component in high-performance filtration systems.
Information
Technical Notes / Background (from KSH):
- The B32 is a plastic sleeve used in the manufacture of concrete filter floors; it’s cast into the concrete.
- It forms both the openings in the concrete floor and the holders (receptacles) for filter nozzles.
- The length of the sleeve is freely selectable to match the desired filter bottom thickness.
Features
Slot Size by Colour
- crop_square 0.2mm Slot Size - Ivory
- crop_square 0.3mm Slot Size - Green
- crop_square 0.35mm Slot Size - White
- crop_square 0.5mm Slot Size - Grey
- crop_square 0.7mm Slot Size - Yellow
- crop_square 0.8mm Slot Size - Blue
- crop_square 1.0mm Slot Size - Black
- crop_square 1.5mm Slot Size - Orange
- crop_square 2.0mm Slot Size - Green
Links
Downloads
Specification Guide
Installation Guide
Uninstallation Guide
Video
Watch the Orthos 4-Part Filter Nozzle Series
Deepen your understanding of filtration system design with the Orthos’ four-part video series — Filter Nozzles 101, 102, 103, and 104.
Explore everything from material selection and screen slot widths to pressure drop dynamics and advanced tailpipe construction for air scour systems.
Whether you’re an engineer, designer, or filtration specialist, these videos unpack the science behind high-performance nozzle systems — helping you optimise efficiency, durability, and performance in every project.






