Dip Tube with Gasket

Rheem SP11248R Dip Tube – 3/4" x 54" Replacement for Select Tank-Type Water Heaters

The Rheem SP11248R is a direct replacement dip tube designed for use with specific Rheem tank-type water heater models. It plays a critical role in system performance by directing incoming cold water to the bottom of the tank, allowing efficient stratification and maximizing usable hot water output. Failure of this component can result in short draws or lukewarm delivery—this OEM part restores correct operation.

Fabricated from corrosion-resistant polypropylene, the SP11248R measures 3/4" in diameter and 54" in length, and includes an integrated anti-siphon port to prevent backflow. This model is precision-molded for durability and compatibility with models such as 88H40/430171, 22V30SFV/493572, and 42V40FV/493596.

Key Features

• OEM Fit: Manufactured to match factory specifications for Rheem residential tank models.
• Corrosion-Resistant Polypropylene: Suitable for long-term use in potable hot water systems.
• Integrated Anti-Siphon Hole: Helps maintain proper tank pressure and prevents thermal backflow.
• Standard Thread Connection: 3/4" NPT-compatible end for seamless integration with existing dip tube ports.
• Efficient Heat Exchange: Ensures cold water is introduced at the tank base, allowing proper stratification and energy-efficient performance.

Specifications

• Part Number: SP11248R
• Length: 54 inches
• Diameter: 3/4 inch nominal
• Material: Polypropylene
• Thread Type: Male 3/4" NPT
• Compatibility: Rheem Models 88H40, 22V30SFV, 42V40FV (see part #s 430171, 493572, 493596)

Installation Notes

Dip tube replacement typically requires disconnecting the cold inlet connection and withdrawing the old tube using appropriate tools. Thread sealant or Teflon tape is required at the NPT joint. While this component can be installed without specialized equipment, service should be performed by a licensed plumber where required by code. The tank should be depressurized and partially drained prior to installation.

For Field Technicians

This replacement part is a practical, field-ready solution for systems with degraded, cracked, or deteriorated dip tubes. Installation restores proper thermal layering, which is essential for maintaining system recovery and output temperature. The 54" length is appropriate for standard vertical tank geometries used in 30–40 gallon models.

Summary

The SP11248R dip tube is a critical service component for maintaining hot water delivery efficiency in Rheem tank-type heaters. With durable construction and precise engineering, this part supports long-term system reliability in both residential and light commercial settings.