U.S. Seal Salt/Ozone 3/4" Pool Pump Shaft Seal | PS-3868
US Seal
SKU: USSPS3868
US Seal PS-3868 Mechanical Shaft Seal (3/4″ Shaft) – Salt & Ozone Rated
Part # PS-3868 — a heavy-duty mechanical shaft seal designed for pool and spa pumps with a 3/4″ motor shaft. Engineered for harsh environments, this seal is ideal for systems using salt-chlorine generators, ozone sanitation, or operating under elevated chemical or temperature conditions.
Key Features
- Designed for pumps using a 3/4″ diameter motor shaft.
- Constructed with Viton elastomers and corrosion-resistant materials for superior chemical and temperature durability.
- Carbon/graphite rotating face paired with a ceramic stationary seat for a reliable, long-lasting seal.
- Improved performance in saltwater, ozone, and high-stress water chemistry applications.
- Direct replacement for many OEM pump shaft seals used in residential and commercial pool/spa pumps.
Typical Applications
This seal is used when a pump begins leaking from the shaft area, especially in systems running saltwater chlorination, ozone injection, or heavy bather load. Ideal for replacing worn or failed seals when servicing pump motors, impellers, or wet-end assemblies.
Installation & Compatibility Notes
Before installation, disconnect electrical power and relieve system pressure. Remove the pump housing and impeller to access the existing seal. Clean the shaft and seal seat area thoroughly. Install the PS-3868 with proper orientation, ensuring the ceramic seat is fully and evenly seated. Reassemble the pump, restore circulation, and confirm no leakage at startup.
Why Choose This Seal?
The PS-3868 is a premium-grade seal that provides enhanced resistance to salt, ozone, heat, and aggressive water chemistry. It extends pump life, reduces maintenance frequency, and offers greater reliability than standard seals—making it a smart upgrade for demanding environments.
Maintenance Tips
- Inspect the pump's shaft area regularly for early signs of seepage.
- Ensure the shaft sleeve or motor shaft surface is smooth and free of corrosion before installing a new seal.
- Use only silicone-based lubricant on O-rings; avoid petroleum products.
- Protect the pump from freeze conditions and drain water during winterizing to prevent seal damage.
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.
Related Products
