Review on 🚿 Attwood 4141-4 Shower Sump Pump System - Efficient 500 GPH Model, 12-Volt: Check out the 22-Inch Wire, Standard Box, and ¾-Inch Interior Diameter Outlet Hose! by Iration Ahim

My shower tray broke so I was looking for a direct replacement. I think I found it but I had to buy a big box and a small box. The reason is that I wanted a small box with a 750 GPH pump (the large pan didn't fit). So I set it up the way I wanted it and sold the stuff I didn't need on eBay. Can't say it was a direct replacement as the inlet holes and mounting screw holes have shifted. I assume improvements have been made over the years, but this has led to some changes and annoyance. Now that it's installed it works great and doesn't have to worry about resetting and overflowing into the hold.