Type D
The Type D nozzle features a cylindrical slotted design ideal for large sand filter systems. Its integrated residual drainage system prevents dead zones at the base of the filter, while the precisely arranged slots deliver an even horizontal backwash pattern for optimal cleaning performance.
Features
Slot Size by Colour
0.2mm Slot Size - Ivory 0.3mm Slot Size - Green
0.35mm Slot Size - White 0.5mm Slot Size - Grey
0.7mm Slot Size - Yellow 0.8mm Slot Size - Blue
1.0mm Slot Size - Black 1.5mm Slot Size - Orange -
2.0mm Slot Size - Green
Links
Downloads
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.