If you’re spec’ing Wilden® Iron 3-inch air diaphragm pumps, here’s what to consider. Here you’ll find Wilden® AODD pumps with a Iron wetted path in the 3-inch size, so you can focus on the build that fits your system. Iron construction is often chosen for demanding service where a sturdy pump body matters. A 3-inch inlet is a smart choice when volume and faster transfer matter more than compact size. For the best long-term fit, compare construction options, diaphragm materials, and system requirements before you select a pump. Check the available configurations below and choose the build that meets your requirements.