Cap Insert Top Replacement Plastic Cap | Pentair | 278021 (Fits Pentair Pool System)

The Pentair Cap Insrt Top, model 278021, circulates water through your pool system to keep it clean and properly filtered. This essential component supports reliable water circulation and healthy pool water, making routine pool maintenance simpler and more effective for any Pentair setup.

Designed for durability in harsh pool environments, it ensures a secure seal and steady flow, reducing leaks and optimizing filtration in both new installs and upgrades. It’s the small part that yields big results in overall water quality.

• Improves pool filtration efficiency with a reliable seal and flow
• Precise, factory-fit design that minimizes leaks and maintenance calls
• Durable materials resist chemical exposure and UV for long life
• Easy installation with standard fittings; no special tools required
• Supports consistent water circulation and balanced chemicals for healthy water

Stay ahead of algae and cloudy water—add the Pentair Cap Insrt Top to your pool maintenance kit today and keep your water pristine.