[Lifetime Warranty] 350013 Lid O-Ring Replacement - Compatible with Pentair IntelliFlo VF, VS 3050, VSF, VS+SVRS, WhisperFlo, Challenger | Pack of 3
Three black 350013 lid O-ring replacement seals arranged in an overlapping circular pattern.
Three black 350013 lid O-ring replacement seals arranged in an overlapping circular pattern.
Lifetime Warranty

[Lifetime Warranty] 350013 Lid O-Ring Replacement - Compatible with Pentair IntelliFlo VF, VS 3050, VSF, VS+SVRS, WhisperFlo, Challenger | Pack of 3

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350013 Lid O-Ring

Key Features

  • Creates a secure seal for the pump strainer lid to prevent water leaks.
  • Engineered for a precise fit on compatible pump models.
  • Constructed from durable, chemical-resistant rubber materials.
  • Dimensions: 5-7/8 inch inside diameter, 6-3/8 inch outside diameter.

Replaces / Cross-Reference Part Numbers

  • 350013
  • 352600
  • 355332

Compatibility & Fitment

  • Fits Pentair IntelliFlo, WhisperFlo (new style), Challenger, Pinnacle, SuperFlo, SuperMax, and OptiFlo series pool and spa pumps.
  • Also compatible with select Pentair EQ series pumps.

When to Replace

  • If water is leaking from the pump lid area.
  • When the existing o-ring is visibly cracked, brittle, flattened, or stretched.
  • During routine seasonal maintenance to prevent future leaks.
  • If a proper seal cannot be achieved after cleaning the pump basket.

Installation Tips

  • Disconnect all power to the pump at the circuit breaker before servicing.
  • Remove the old o-ring and clean any debris from the o-ring groove and lid threads.
  • Apply a compatible silicone-based lubricant to the new o-ring to extend its life and ensure a proper seal.
  • Seat the new o-ring securely in the groove, ensuring it is not twisted.
  • Hand-tighten the lid; do not use tools which can cause damage.
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  • FIX THE FOLLOWING SYMPTOMS

    FIX THE FOLLOWING SYMPTOMS

    Water leaks| Loss of pressure | Air entering the pump | Reduced pump efficiency.
  • HIGH-GRADE MATERIAL

    HIGH-GRADE MATERIAL

    Made from heavy-duty rubber material provides excellent sealing performance and dependable durability.
  • SAVING SOLUTION

    SAVING SOLUTION

    Restore a tight, leak-free seal and keep your pump running smoothly - BlueStars brings DIY solutions to help you deal with any trouble.
  • IMPORTANT NOTE

    IMPORTANT NOTE

    This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility.
#1 SOURCE OF QUALITY POOL COMPONENTS

#1 SOURCE OF QUALITY POOL COMPONENTS

Reliable pool components engineered for long-lasting strength and seasonal protection

FAQ

This O-ring fits several Pentair and PacFab pool and spa pump families, including WhisperFlo, IntelliFlo, Challenger, Pinnacle, EQ Series, and WaterFall pumps. It is also compatible with WFE pumps manufactured after 11/98. Because Pentair and PacFab model variations can differ by production date, verify your pump model and compare your existing lid seal to part number 350013 before ordering.
Yes. This part serves as a direct replacement for 350013, 350013Z, 352600, 355332, and 0-318. If your current lid seal matches any of these numbers and your pump belongs to the compatible families, this is the correct replacement component.
Typical symptoms include air bubbles returning to the pool, the pump losing prime, difficulty priming after cleaning the basket, water seepage around the pump lid, or a lid O-ring that appears flattened, cracked, brittle, stretched, or swollen. A worn lid seal can allow air into the suction side even if the lid feels tight.
Pool pump lid O-rings typically fail due to age, heat, chemical exposure, and lack of lubrication. They can also deform if the lid is overtightened, installed dry, pinched during reassembly, or exposed to dirt and debris on the sealing surfaces. In outdoor equipment, sun and temperature cycling also accelerate hardening and cracking.
Installation is straightforward and typically takes 5 to 10 minutes. Turn off power to the pump, relieve system pressure, remove the strainer lid, and take out the old O-ring. Clean the lid groove and pump sealing surface thoroughly, then install the new O-ring evenly without twisting it. Applying a light coat of pool-safe silicone lubricant is recommended to help the seal seat properly.
Inspect the pump lid for cracks or warping, and ensure the mating surface on the strainer housing is clean and smooth. Check that the basket area is free of debris and that the lid threads or clamps down evenly. If the pump continues to pull air after replacing the lid seal, inspect the drain plug O-rings, suction-side unions, valves, and fittings for potential air leaks.