Pentair WC9-3 Sta-Rite O-Ring Tank

What This Part Is Used For
The Pentair WC9-3 Sta-Rite O-Ring Tank is used to seal Sta-Rite filter tank assemblies. It prevents water from escaping at the tank seam during normal filtration cycles.

Why This Part Matters
A deteriorated tank O-ring can cause dripping or spraying under pressure. That can reduce filtration efficiency and create safety concerns. Installing a fresh seal restores proper tank compression and leak-free operation.

Key Features and Specifications

• Manufacturer part number: WC9-3
• Sta-Rite tank O-ring
• Used in Sta-Rite filter assemblies
• Maintains watertight tank seal
• OEM replacement part

Installation and Fitment Guidance
Clean the tank groove and inspect clamp components before reassembly. Lightly lubricate the O-ring for proper seating. Confirm by manufacturer part number before ordering.

About the Pentair Brand
Sta-Rite is a Pentair brand known for durable pool equipment. Pentair supports Sta-Rite systems with OEM replacement components. Proper sealing parts are essential for safe filter operation. Service technicians depend on genuine Pentair parts for consistent results.

Common Service Context
Replaced during major filter cleanings or when leaks develop at the tank band. Often addressed during seasonal startup.