How To Choose Between A Transfer Switch Vs Interlock Kit With Power Inlet Box - YouTube
Amazon.com: Natupal Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp panels. 1 3/8 inches Spacing between main and generator breaker, Professional and Interlock Kit : Tools & Home Improvement
Panel Interlock Kit Kits - for safely connecting generator power without a transfer switch
GenInterlock SD-200A Square D Electrical Panels Interlock Kit for Safe Outdoor Portable Power Use During Outage, 150 and 200 Amp: Amazon.com: Industrial & Scientific
Square D QO 100 Amp Outdoor Load Center Generator Interlock Kit QOCRBGK1C - The Home Depot