NDS 1217 12" x 12" Black Riser Extension for Catch Basin

Built for yard and area drains, the NDS 1217 12" x 12" black riser extension increases sump capacity and adapts standard 12" catch basins for deeper outlets. Its two openings accept universal outlet fittings so you can control flow and connect drainage lines without modifying the basin body.

• Size: 12" x 12" riser extension designed to nest on top of the 12" catch basin series for shallow outlets or on a 12" sump box for increased sump area.
• Two openings: Provides two separate inlet openings; each opening requires a compatible universal outlet fitting for proper connection.
• Compatible outlets: Requires one of the following universal outlets for each opening: #1206, #1242, #1243, #1245, #1266, or #1889.
• Black finish: Neutral black color that integrates with common outdoor drainage installations and resists visible discoloration in buried applications.
• Application: Ideal for residential yard drains, landscape low spots, and area drainage where added sump depth improves debris settling and flow control.
• Maintenance: Simple access to openings allows inspection and clearing of debris when paired with the correct outlet fittings and catch basin components.

Use the NDS 1217 riser extension to adapt existing 12" basins or sump boxes when additional sump volume is needed. Confirm which universal outlet (#1206, #1242, #1243, #1245, #1266, or #1889) you will use for each opening before installation and follow local codes and manufacturer recommendations for secure fitting and connection.