Looking for Polypropylene 1-1/2-inch air-operated diaphragm pumps from Wilden®? A 1-1/2-inch inlet is often selected when you want a balance of throughput potential and a reasonable pump footprint. If you prefer a non-metallic wetted path, Polypropylene is a versatile option to consider for compatibility-driven specs. This combination pairs a Polypropylene wetted path with a 1-1/2-inch connection size, two of the biggest factors when you’re choosing an AODD pump. For the best long-term fit, compare construction options, diaphragm materials, and system requirements before you select a pump. Compare the available models below to find the best fit for your application.