U.S. Seal Replacement Shaft Seal, PS-3867, 5/8" Shaft, Viton PS-200, PS-3867 ; 5/8 Inch Shaft
Model PS‑3867 is essentially the salt/ozone‑duty version of the PS‑200 seal, using Viton‑grade materials to handle more aggressive water chemistry and higher temperatures. It is a 5/8" shaft mechanical seal with a Viton bellows, graphitic or carbon primary ring, polished ceramic seat, and stainless hardware, designed to sit between the pump wet end and motor and keep water from leaking along the shaft.
Key Specs and Materials
- Shaft size: 5/8" (0.625").
- Elastomers: Viton (FKM) bellows and O‑rings, for superior chemical and heat resistance.
- Seal faces: Carbon or graphitic primary ring against a polished ceramic seat.
- Hardware: Stainless steel spring and metal components.
- Application rating: Specifically marketed as an ozone/salt generator seal assembly for harsher pool and spa environments, offering longer life than standard general‑service seals.
Used On
- Flo-Master FMVP Series Vertical Mounted
- Gecko Flo-Master XP/XP2/XP2E 48-Frame
- Gecko Flo-Master XP2/XP2E 56-Frame
- Gecko Flo-Master XP3 56-Frame Pump
- Jacuzzi K & KM Series Pump
- Jacuzzi Models L Pump
Pump Compatibility
- The PS‑3867 is widely used as a replacement shaft seal in many pool and hot tub pumps, including:
- Gecko Flo‑Master XP/XP2/XP2E 48‑frame and 56‑frame, and XP3 56‑frame.
- Flo‑Master FMVP vertical‑mount, Circ‑Master, Pond Flo, Tub‑Master, and Dominator medium‑head pumps.
- Hayward Max‑Flo II and some cast‑iron models, as well as various Baker‑Hydro, Doughboy, Astra/Sena, Purex/Hydrotech Challenger and other OEM pumps.
Many sources also list it as a direct or upgraded replacement for PS‑200/PS‑200V and several OEM part numbers from Aqua‑Flo, Hayward, Jacuzzi, Pentair, Sta‑Rite, and Waterway.
