US Seal Ozone Pump Shaft Seal | PS-201V-CMS

USSeal SKU: USSPS201VCMS
US Seal Ozone Pump Shaft Seal | PS - 201V - CMS - Pump Parts - img - 1

US Seal Ozone Pump Shaft Seal | PS-201V-CMS

USSeal SKU: USSPS201VCMS
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US Seal Shaft Seal – Model PS‑201V‑CMS (¾″ Shaft, Viton O‑ring, Ozone/Salt Service)

The US Seal PS‑201V‑CMS is a premium mechanical seal assembly engineered for ¾‑inch pump shafts and specifically designed for demanding ozone and saltwater environments.

Key Features:

  • Fits ¾‑inch shaft diameter — drop‑in replacement for PS‑201/PS‑851 style seals
  • Viton elastomer (CMS version) for superior chemical resistance in ozone and salt systems
  • Heavy‑duty carbon/graphite stationary ring and stainless‑steel rotating element for long life
  • Compatible with a wide range of pool/spa pumps including Sta‑Rite, Pentair, and other 56‑frame motor setups

Technical Specifications:

  • Model / SKU: PS‑201V‑CMS
  • Shaft Size: ¾″ (0.750″) standard shaft diameter
  • Elastomer: Viton (CMS version) rated for ozone and salt applications
  • Stationary Ring: Carbon/Graphite; Rotating Ring: Ceramic or comparable OEM spec
  • Application: Use in pool and spa pump wet ends exposed to ozone, salt, or harsh chlorine environments
  • Shipping Weight: Approx. 0.12‑0.5 lb depending on packaging

Maintenance Tip: Whenever you replace a motor or pump wet‑end in a salt or ozone system, install this upgraded seal. Clean the shaft and seal cavity thoroughly, apply a thin film of pool‑safe silicone grease, and ensure proper seating. After installation, monitor for leaks during the first hour of operation. If no leakage occurs, run the system for 24 hours and re‑check torque and seal condition.

SKU: PS-201V-CMS

Hours Of Operation: 

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

  • Orders costing more than  $300 WILL be required to have signature confirmation upon delivery.
  • Handling time is typically only 1 day.   
  • Any item ordered after 1pm Phoenix time, may not ship same-day.
  • Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

  • All products, except as noted below, are eligible for return up to 30 days after receipt of item.
  • For returns, an RMA form must be filled out HERE or customers can call for additional help.
  • Shipping costs will be deducted from all returned items.
  • Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in. 
  • Items broken, damaged, or inoperable due to installer error will not be refunded.
  • Fill out the return form or give us a call to obtain an RMA and return shipping label.
  • There are no returns on the Pentair Colorsync 618031
  • No returns on pool cleaners.
  • No returns on opened seals and o-rings.
  • No returns on capacitors.
  • If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
  • All products denied upon arrival at customers house WILL be charged the cost to ship.
  • Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.