NDS 1816 18 in. Catch Basin Riser Extension – Black
Brand: NDS | SKU: 1816
Product Overview
The NDS 1816 is an 18-inch catch-basin riser extension used to increase the installed height of a compatible NDS basin. A riser is useful when the basin body needs to sit deeper while the grate or access point must meet the finished landscape or hardscape elevation.
Key Features
- Riser extension for compatible 18 in. catch basins
- Adds approximately 9 in. of height
- Black styrene construction
- Maintains access to the basin from finished grade
Common Uses
Residential and light-commercial drainage systems where compatible NDS components are used to collect, control or route water.
Technical Specifications
- Material: Styrene
- Color: Black
- Length: 21 in.
- Height: 9 in.
- Weight: 7 lb.
Compatibility & Installation Notes
NDS 1816 is a riser, not a complete catch basin. Confirm compatibility with the 18-inch basin assembly and account for the added height when establishing inlet, outlet and finished-grade elevations.
Frequently Asked Questions
What is a catch-basin riser for?
It raises the basin’s upper access/grate elevation when the main basin must be installed deeper.
Does NDS 1816 include the complete basin?
No. It is the riser extension for a compatible 18-inch basin system.
Why Buy From Big Frog Supply?
NDS 1816 lets installers adjust an 18-inch catch basin to finished grade without misidentifying the riser as a complete basin.
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