Fit SD100XUL Square D Generator Interlock clip This fits for older style 100 amp QO panels with this style main breaker Compatibility This interlock clip is specifically designed for older style 100 amp QO panels with this style main breaker, ensuring a perfect fit for your generator setup. Origin Quality Originating from Mainland China, this interlock clip benefits from the country's advanced manufacturing processes, guaranteeing superior quality and durability. Brand Trust Produced by NoEnName_Null, a trusted brand known for its quality and reliability in the industry, this interlock clip offers peace of mind for your generator needs. Versatility This interlock clip is versatile, compatible with various generator models, enhancing its value and utility. Ease of Installation The Fit SD100XUL interlock clip is easy to install, making it a convenient choice for DIY enthusiasts and professionals alike. Square D Generator Interlock clip This fits older style 100 amp QO panels with this style main breaker This is a UL Listed item Please check the pictures to make sure it matches your panel Please follow all National Electric Codes when installing this interlock Breakers and panelbox not included Kit Includes: Instructions, labeling, and interlock kit