By U.S. Seal Manufacturing
Part # 5250-309
Manufacturer Code PS-309
Dimensions 1.25" L x 1.25" W x 1.25" D
Pump Shaft Seal 7/8" - PS-309
which way does the seal go
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The spring side of the shaft seal goes on the backside of the impeller and the white ceramic portion goes into the seal plate closer to the motor. We have a good step by step Guide on How to Replace a Pool Pump Shaft Seal which goes into detail on this, step 12 - 17 show this pretty well.
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