Skip to Content
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 vent cap is designed to remain continuously open, providing constant airflow and pressure equalization for the storage container it is installed on. Unlike pressure-activated vent caps, it does not have a mechanism that opens or closes based on pressure changes.

  • The screen acts as a barrier to keep debris, insects, and particulates from entering the storage container while still allowing the vent to remain open and functioning at all times.

  • This cap is designed for use with Fluidall storage products. Compatibility with a specific container size or thread configuration is not specified — confirm the correct fit with Fluidall before ordering.

Key Features

  • Continuously open vent design -- remains open at all times to allow constant, passive airflow for Fluidall fluid storage systems

  • Integrated screen helps keep debris and contaminants out while maintaining uninterrupted ventilation

  • Fluidall brand storage accessory (MPN: VCS), built for use with compatible Fluidall storage equipment