Response to Hi Mike, Thanks for the photos! Based on your photos you have a Hayward Super II Pump and we show that the spx1610z2mns is specific to the Hayward Northstar Pump. We would suggest this 1 HP Full Rate Dual Speed Motor and this Hayward Super II Seal Kit. The reason we are suggesting the 1 HP full rate is that the True HP for the 1 HP full rate is identical to your 1.5 HP Up Rate. Here is the math showing this 1.5 HP Up Rate - 1.5 HP x 1.0 Service Factor = True HP of 1.5 THP and 1 HP Full Rate - 1 HP x 1.5 Service Factor = True HP of 1.5 THP

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