The duplex strainer system usually consists of two separate strainer baskets housings. The system also contains a valve handle placed between the two baskets to divert the flow of liquid to one strainer while the other is being cleaned. This arrangement provides a bubble-tight shut off between basket chambers, essential for use in negative head pump suction systems. They are very economical because they are fabricated to your specific requirements and with your choice of valves. Check out our full line of strainers or for more information contact us right now.