PSS Shaft Seal Maintenance Kit 1 1/8" Shaft 1 1/2" Tube [07-118-112R]PSS Shaft Seal Maintenance & Parts Replacement Kit FOR 1 1 8" SHAFT 1 1 2" TUBE As with any rubber hose below waterline, the PSS bellows must be inspected on a regular basis for any sign of wear, aging or chemical deterioration. The PSS bellow should be replaced in six year intervals. During bellows replacement it is recommended the o rings & set screws in the stainless steel rotor also be replaced. Bellows may need to be more frequently inspected in