Advanced FIT 430 and 830 stainless steel air-operated double-diaphragm (AODD) pumps from Wilden Pump & Engineering, part of PSG, a Dover Company, feature corrosion resistance in aggressive chemical applications. The pumps are direct replacements for Wilden 1 1/2- and 2-
inch Advanced pump installations. 909/422-1730; www.wildenpump.com.
