Pentair Replacement Union O-Ring for Challenger Pumps, 2 3/8" ID, 1/8" CS

O-Ring, 2-3/8" ID x 1/8" Cross Section – Generic Replacement

This 2-3/8" inner diameter O-ring with a 1/8" cross section is a durable, general-purpose replacement designed for a variety of pool and spa sealing applications. It serves as a direct replacement for the Pentair Challenger Pump union O-ring, OEM part number 355330, and fits securely to help maintain proper system sealing and performance.

Constructed from high-quality standard elastomer material, this O-ring provides a dependable seal for pump unions, fittings, and other components in pool and spa systems.

Features:

• Compatible replacement for Pentair Challenger Pump union O-ring (OEM #355330)

• Dimensions: 2-3/8" ID x 1/8" cross section

• High-quality standard elastomer for dependable sealing

• Designed for use in pool and spa water systems

• Cost-effective alternative to OEM parts

• Simple installation for maintenance and repair

Also Replaces: