XiKe 2 Pack Precision Ball Bearing Replacement Pentair Whisperflo Pool Pump, Rotate Quiet High Speed and Durable. APPLICATION - Replacement for Pentair Whisperflo Pool Pump. BEARINGS - ABEC-3 Manufacturing Grade Rotate Quiet High Speed and Durable. SEAL - Double Seal Effectively Saves Grease and Prevent Impurities From Entering. IMPROVE - Internal Clearance Slightly Larger, Compensate for Thermal Expansion. PROFESSIONAL - Professional Manufacture fo Bearing Beginning in 1945. <span class="a-text-bold">XiKe Bearings USA </span>is The Only Shop With United States XiKe Brand License. We Sales High-Quality Bearings, Pillow Block, Repair Kits, Steel Balls and Related Parts. Provide Professional Selection Guidance and Maintenance Knowledge Etc. Reduce Maintenance Costs and Replace Frequency, Create More Value for You.