When your system calls for 1-inch Alloy C AODD pumps from Wilden®, a few details matter most. A 1-inch connection is a versatile size that fits many everyday transfer and recirculation setups without oversizing the pump. Alloy C is commonly specified when you need a high-alloy wetted path for demanding chemical-duty applications. These Wilden® 1-inch air-operated double diaphragm pumps use a Alloy C wetted path and are built for dependable pneumatic pumping. For the best long-term fit, compare construction options, diaphragm materials, and system requirements before you select a pump. Browse available configurations below and pick the option that matches your setup.