Pentair HydroBoost [9.0A/4.5A] [1S] Booster Pump is a replacement pump option for pool, spa, water feature, or equipment pad applications where dependable water movement is required. Selecting the correct pump involves more than horsepower alone; voltage, amperage, phase, plumbing connection, flow requirements, and the application type should all be checked before installation. This unit can be used when an existing pump has failed electrically, lost performance, become unreliable, or no longer meets the circulation demands of the system. The listed specifications for this item include 9.0A/4.5A, 1S, which can help confirm the correct configuration before ordering. For best results, compare the current pump label, plumbing layout, and equipment requirements with the specifications in the title. Proper sizing and installation help protect downstream components while supporting more consistent circulation and filtration.For this specific item, use part number 360526 as the primary reference when checking fitment. The vendor listed for this product is Pentair Pool Products, and the category is Pumps, which helps identify the most likely equipment area but should not replace direct comparison with the original part. If the old part is still available, compare connection points, mounting locations, color or finish, molded markings, and any printed service numbers before installing the replacement. Replacement pump for compatible pool, spa, or water movement applications Useful when the existing pump is failed, noisy, leaking, or underperforming Check voltage, amperage, phase, plumbing, and horsepower before ordering Supports circulation, filtration, boosting, or submersible transfer use depending on model Professional installation is recommended for electrical and plumbing connections