The S Series direct drive pump is made of premium stainless steel and bronze construction for added longevity. Options include 1/2″ or 3/4″ intake with a capacity of 290 to 868 gph at 1′ head flow. All models feature a flow adjuster. Optional mounting stands are sold separately. Recommended for koi pond applications. The S Series direct drive pump is not recommended for swimming pool applications. UL and CSA listed for consumer confidence.