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Keller-Heartt has Truegard Propylene Glycol Heat Transfer Fluids in both Inhibited and Food Grade! Order Today!
Propylene Glycol Available. Order Today!

Frequently asked questions

Find answers to common questions about our products and services
  • This fill cap is compatible with all Roth Double Wall Tanks.

  • Yes, this fill cap is lockable, allowing you to secure the fill point on your double wall tank to help prevent unauthorized access.

Key Features

  • Lockable fill cap design provides controlled, secure access to tank contents

  • Built-in vent to support proper tank operation

  • Compatible with all Roth Double Wall Tanks