I needed to replace my existing driveway sump pump because it was giving me problems with the float switch. It was important to have the same replacement because my existing pump box was pre-plumbed. The new Little Giant pump replaced the old one perfectly. I tested it about a dozen times before sealing up the box. That night we had a huge downpour of rain and the pump worked great. I replaced the float switch on the old pump and now have one for a future location. This is a great "Little Giant" of a pump.