NDS 1220 12 in. Square Sump Box Cover
The NDS 1220 is the solid black cover for a 12 in. square sump box. It closes the NDS 1225 sump box, the 12 in. catch basin series, and the NDS 1219 backwater valve box so debris stays out of the basin while the box remains accessible.
Key Specifications & Features
- SKU: 1220
- Brand: NDS
- Type: Solid sump / valve box cover
- Size: 12 in. square
- Color: Black
- Material: UV-protected high-density polyethylene (HDPE)
- Openings: Solid cover, 0 sq in. open area
- Fits: NDS 12 in. catch basin series, NDS 1225 sump box, NDS 1219 backwater valve box
- Weight: 2.23 lb
Frequently Asked Questions
What does the NDS 1220 cover fit?
NDS specs the 1220 for the 12 in. catch basin series, the 1225 sump box, and the 1219 backwater valve box. It is the lid only. The basin or sump box is sold separately.
Is the NDS 1220 a grate?
No. The 1220 is a solid cover with no openings. Use it when the sump or valve box should stay closed. Choose a 12 in. grate when the basin has to take surface water.
Will the NDS 1220 fit the NDS 1225 sump box?
Yes. The 1225 is the one-piece 12 in. square sump box, and NDS lists the 1220 cover for that box.
What is the NDS 1220 made of?
UV-protected HDPE, black, about 2.23 lb. The cover is structural foam so it holds its shape outdoors on a 12 in. basin.








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