Little Giant 517101 Foam Prefilter CFS155T CFS170T

Product Description

The LITTLE GIANT 517101 is a foam prefilter designed as a replacement accessory for compatible Little Giant condensate pump units. Foam prefilters protect condensate pump intake ports from debris, particulates, and sediment that can clog pump mechanisms and reduce service life. The 517101 is installed by HVAC technicians during routine pump maintenance or when replacing a worn or saturated filter element. Keeping the prefilter in good condition is a straightforward maintenance task that helps maintain consistent condensate removal in split-system air conditioning, mini-split, and fan coil unit installations.

This foam prefilter is intended for use in residential and light commercial HVAC applications where Little Giant condensate pumps handle condensate drainage. It fits the CFS155T and CFS170T pump models as identified by the manufacturer. Condensate pumps equipped with foam prefilters are commonly found in installations where gravity drainage is not possible, such as basement or interior air handler setups. Replacing the prefilter at regular service intervals helps prevent pump overflows and nuisance lockouts.

Key Features

• Foam construction traps particulates and debris before they reach the pump intake
• Direct OEM-style replacement for CFS155T and CFS170T condensate pump units
• Helps prevent clogging and extends pump service life
• Designed for easy field replacement during routine HVAC maintenance

Compatibility

Designed for use with Little Giant CFS155T and CFS170T condensate pump models as specified by the manufacturer.

Installation Notes

A licensed HVAC technician should disconnect power to the condensate pump before removing or replacing the foam prefilter. The prefilter element should be inspected at each maintenance visit and replaced when saturated, deformed, or visibly clogged. No special tools are required for prefilter replacement. Dispose of the used prefilter in accordance with local regulations.

Technical Specifications

• UPC: 10121142671
• Order Increment: 1

Standard Information

• Brand: LITTLE GIANT
• Manufacturer Part Number: 517101