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Keller-Heartt has Truegard Propylene Glycol Heat Transfer Fluids in both Inhibited and Food Grade! Order Today!
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Frequently asked questions

Find answers to common questions about our products and services

  • The DEF-50 is made of polyethylene and requires manual operation, meaning the user controls the flow directly. The DEF-49 is constructed from stainless steel and features automatic operation, making it better suited for higher-volume or hands-free dispensing applications.

Key Features

  • Manually operated nozzle design for direct operator control during fluid dispensing

  • Polyethylene body construction as specified in the product design

  • Identified by model number DEF-50 for easy reordering and parts identification