Zoeller ZOEL-004997 Cast Iron 4 Inch Inlet Hub

Product Description

The ZOELLER ZOEL-004997 is a cast iron inlet hub designed for use with curved-mount sewage basin installations. This fitting provides a sealed 4-inch inlet connection point, allowing gravity-fed waste lines to terminate cleanly into the basin. The unit ships with both the inlet hub and a mating seal, giving installers everything needed to complete the penetration in a single assembly. Cast iron construction delivers long-term durability in the wet, corrosive environments typical of below-grade sump and sewage applications. Plumbing contractors and service technicians install this fitting during new basin setup or as a replacement on existing systems.

This inlet hub is suited for residential and light commercial sewage basin installations where a 4-inch inlet penetration is required on a curved basin wall. The curved-mount profile matches the contoured interior surface of fiberglass and polyethylene basins, ensuring a flush, leak-resistant fit. It is compatible with curved sewage basins measuring 24 inches, 30 inches, 36 inches, 42 inches, and 48 inches in diameter. Use in gravity-drain configurations where a watertight inlet connection is required at the basin sidewall.

Key Features

• Cast iron construction for corrosion resistance and long service life in wet environments
• 4-inch inlet opening sized for standard residential and commercial drain lines
• Includes hub and seal — no additional sealing components required
• Curved-mount profile fits the contoured walls of fiberglass and polyethylene basins
• Compatible with five standard basin diameters: 24, 30, 36, 42, and 48 inches

Compatibility

Fits any fiberglass or polyethylene curved sewage basin with a diameter of 24 inches, 30 inches, 36 inches, 42 inches, or 48 inches.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Before beginning work, ensure the sewage system is depressurized and the basin is free of waste. Seat the included seal fully against the basin wall before securing the hub to prevent bypass leakage. Verify the inlet pipe is properly supported and aligned before making the final connection.

Technical Specifications

• Material: Cast Iron
• Inlet Size: 4 inches
• Mount Type: Curved Mount
• Compatible Basin Diameters: 24, 30, 36, 42, 48 inches
• Compatible Basin Materials: Fiberglass, Polyethylene
• Includes: Inlet Hub and Seal

Standard Information

• Brand: ZOELLER
• Manufacturer Part Number: ZOEL-004997