Replacement 5/8-Inch Ozone/Saltwater Swimming Pool and Spa Pump Shaft Seal - PS-3869 Replacement 5/8-inch shaft seal compatible with various swimming pool and spa pumps Ideal for pools or spas with Ozone and Salt Water sanitizing systems Features a carbon primary ring, polished ceramic seat and stainless steel hardware Compatible with: Hayward PowerFlo II, PowerFlo LX, PowerFlo Matrix, Gecko Alliance Flo-Master and Tub-Master US Seal Mfg. Model: PS-3869