6-1/4" Cap for Sump Pump Well with 4 Bolts

6-1/4" Sump Pump Well Cap – Heavy-Duty Protection for Submersible Installations

The 6-1/4" sump pump well cap is engineered to provide a secure, weather-resistant closure for sump and utility pump applications. Designed to fit standard 6" to 6-5/8" OD well casings, this cap helps protect equipment and piping from environmental exposure, debris, and surface water infiltration—essential for extending pump life and ensuring clean, reliable performance in the field.

Professional-Grade Features

• Rugged Construction: Manufactured from durable polymer or corrosion-resistant material to withstand outdoor elements and mechanical impact.
• Ventilated for Airflow: Integrated screened vent port allows for proper air circulation while keeping out rodents and insects.
• Multi-Bolt Clamping System: Four-bolt design provides a secure seal to casing while allowing easy removal for service.
• Conduit Access Port: Built-in 1-3/8" knockout accommodates power or signal conduit, ensuring a clean and professional wiring pass-through.
• Load Support: Rated to support lightweight riser assemblies or poly conduit up to 250 lbs.

Product Specifications

• Cap Diameter: Fits 5-5/8" to 6-1/4" well openings
• Compatible Casing OD: 6" to 6-5/8"
• Conduit Opening: 1-3/8"
• Fastening Method: Four bolt clamp with gasketed seal
• Material: High-impact polymer or coated steel (specify by model)

Installation Considerations

Cap installation is straightforward and can be completed with basic hand tools. To ensure proper sealing, verify that the casing is clean and round before tightening bolts in a crisscross pattern. While this component is often installed by licensed professionals, it’s suitable for qualified maintenance personnel or experienced contractors performing well upgrades or pump replacements.

Applications

• Residential and light commercial sump wells
• Submersible pump enclosures requiring vented access
• Outdoor installations needing secure, vermin-resistant closure

Why Use a Well Cap Like This?

Improperly sealed well openings can lead to system contamination, cable damage, or pump failure. This cap design offers both protection and ventilation—two critical factors for long-term reliability in any sump or utility pump system. The rugged, sealed design ensures compliance with job site expectations for quality and safety.