Accessory for the Eureka spiral staircase model K21008 - up to three additional risers can be added to reach a maximum height of 148-1/16 in.
- Exterior/interior installation
- Additional riser kit consists of one 12-Gauge powder coated steel component (satin gray), one gray ABS tread cover, four balusters, connectors and stainless steel hardware
- Each riser will add 26.4 degrees to the rotation of the stair
- Rise adjustable from 8-9/32 in. to 9-1/4 in.
- Use only with model K21008
- Important: consult your local building inspector for specifics regarding compliance with the local building codes