The rugged, heavy duty model IS is the strainer to select when operating conditions demand carbon steel, stainless steel or bronze construction. It features the thickest body walls on the market, guaranteeing high corrosion allowance and unsurpassed longevity. High open area ratios reduce operating costs by lowering maintenance requirements, while the quick-opening cover also cuts maintenance time and costs. The outstanding longevity of the model is plus its low operating expenses combine to give you a strainer with the lowest life cycle cost available.