Expand your Gecko Gauge SA902 siding installation tool with this extension kit. Adds three additional reveal settings for greater versatility when installing fiber cement siding.

• Adds 10", 10-3/4", and 11-1/2" reveal options to SA902
• For use with 5/16" thick fiber cement siding
• Sold as a pair to work with both gauges
• Durable aluminum construction
• Works with Hardie fiber cement and LP SmartSide

Note: Requires Gecko Gauge model SA902 base unit (sold separately). The Gecko Gauge system enables fast, one-person siding installation with consistent spacing.