Running out of space in your Square D Homeline electrical panel? This HOMT1515215CP quad tandem breaker is the solution. It's a clever design that fits into the space of just two regular breaker slots but gives you four circuits. Here's how it works: In the middle, there's a standard 15-amp, 240-volt double-pole breaker (for something like a small AC unit or water heater). On either side of that, there are two separate 15-amp, 120-volt single-pole breakers (perfect for adding extra lighting or outlet circuits). So from two slots, you get a 2-pole and two 1-pole breakers. It has a 10kA interrupting rating and is HACR rated for heating, AC, and refrigeration equipment. It's a plug-on design made specifically for Homeline load centers, so installation is a snap if you're comfortable working in a panel. It accepts wire sizes from 14 AWG to 8 AWG (copper or aluminum). Always turn off the main breaker before installing any circuit breaker, and if you're unsure, call an electrician. This is a great way to add circuits without upgrading your entire panel.