If you’re spec’ing All-Flo™ Polypropylene 1-1/2-inch air diaphragm pumps, here’s what to consider. The 1-1/2-inch format makes sense when you need a step up in capability without jumping to the largest pump sizes. Polypropylene gives you a corrosion-resistant thermoplastic option that’s widely used for chemical handling. Here you’ll find All-Flo™ AODD pumps with a Polypropylene wetted path in the 1-1/2-inch size, so you can focus on the build that fits your system. Take a minute to confirm media compatibility, operating pressure, temperature limits, and connection style so you end up with the right configuration. Check the available configurations below and choose the build that meets your requirements.