Description

The Pentair Drain & Vent Valve O-Ring (R172221) ensures a reliable seal while connecting and routing water through your pool system during repairs or upgrades. This precisely sized O-ring is designed to fit the R172221 drain and vent valve assembly, helping prevent leaks and maintain steady water flow when you reseal plumbing or swap components.

Why it matters: a snug valve seal reduces air intrusion, minimizes backflow risk, and supports consistent filtration and circulation. Built from durable elastomer suitable for typical pool environments, this replacement seal is easy to clamp into place with standard hand tools during routine maintenance. Use it with your Pentair drain & vent valve or compatible fittings to extend the life of your pool plumbing.

• Precisely sized for R172221 valve assemblies
• Provides a reliable, leak-resistant gasket for water routing
• Supports consistent water flow during repairs or upgrades
• Easy installation with common hand tools
• Compatible with standard pool piping and Pentair components

Ready for your next repair? Add to cart to ensure a secure, leak-free seal on your pool’s drain and vent system.