U.S. Seal Salt/Ozone 5/8" Pool Pump Shaft Seal - PS-3867 C4950 Natural Chemistry’s Spa Alkalinity Increaser

Natural Chemistry’s Spa Alkalinity Increaser is used to raise total alkalinity in spa water

easy to spot in case of emergencies

— for Pentair FullFloXF

Replace the O-ring at the first sign of wear — confirm the correct O-ring size against your pump's parts diagram before ordering a replacement

measuring a long 78"

U.S. Seal Salt/Ozone 5/8" Pool Pump Shaft Seal - PS-3867 C4950 Natural Chemistry’s Spa Alkalinity IncreaserPremium salt and ozone resistant shaft seal engineered specifically for harsh pool environments. The PS 3867 delivers the superior chemical resistance and durability your salt chlorine generator or ozone system demands, preventing premature leaks and costly pump damage. Technical Specifications: Specification Details Shaft Diameter 5 8" (0. 625") Primary Ring Material Carbon Graphite Seat Material Polished Ceramic Elastomers Viton (FKM) Salt Ozone