Pentair Superflo VS/VST Lid O-Ring || 357255Z

Pentair SuperFlo / OptiFlo Lid O-Ring | SKU 357255Z

Genuine Pentair lid o-ring for SuperFlo, SuperFlo VS/VST, and OptiFlo pumps — ensures watertight seal.

Features

• OEM lid o-ring for SuperFlo / SuperFlo VS / SuperFlo VST / OptiFlo pumps
• Durable Buna-N (Shore-70) material resists pool chemicals & UV exposure
• Exact #2-357 o-ring geometry per Pentair parts sheet
• Restores a leak-free seal between the pump lid and housing
• Simple, drop-in replacement — no modifications needed

Description

This Pentair 357255Z lid o-ring (also referenced as #2-357) is a direct replacement for Pentair’s SuperFlo, SuperFlo VS/VST, and OptiFlo pump lids. Over time, o-rings naturally degrade — becoming brittle or flattened — which can lead to leaks or loss of prime. This OEM replacement restores sealing integrity, providing a tight, water- and air-resistant fit. Designed to Pentair’s original dimensions, it installs easily in the lid groove for fast maintenance turnaround.

Pro Tip

Apply a thin layer of silicone o-ring lubricant before installation to ease seating and reduce wear. Always reuse an o-ring when opening the lid — pairing this with a refreshed clamp ring (eg, SKU 357239Z) helps maintain a complete, robust seal.

Related Parts

• OptiFLo Pump Parts and Accessories
• SuperFlo VST Pump Parts and Accessories

Installation Tips

Always disconnect the pump from power before servicing. Clean the seating surfaces and grooves thoroughly of debris before placing the O-ring. Don’t distort or stretch the o-ring — place it evenly. Use a compatible lubricant if needed and ensure proper reassembly of the ID and clamp.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.