Check the listing for details. GenInterlock SIE-P1 Murray, Siemens Generator interlock kit 100A Panel LISTED. Color: Gold, Condition: New. Listed at 69.95 USD. Murray or Siemens Generator Interlock clip This fits the 1 1/4 spacing and the NEW plug on Neutral 7/8 Spacing100 or 125 Amp panels with the main breaker above the top leftThis is an APPROVED interlock tested by MET LabsMet Lab Listing E113887We Are the ONLY seller selling a proper listed and tested product. All others are counterfeit items that fail inspectionsAsk your inspector how important to have a properly listed itemBEWARE of Sellers on here selling NON listed productsThey will NOT pass inspectionsMADE IN THE USA Kit Includes: Instructions, Labeling, Drill bit, Interlock Clip, and holding strapPlease follow all National Electric Codes when installing this interlock Breakers and panelbox not included