Model 579 One-Bolt Coupling

Introducing the new GRINNELL G-Fire One-Bolt Coupling. It brings you all the benefits of a pre-assembled, push-on coupling but with one key difference. The single-bolt design makes joining grooved pipe faster and easier than ever before and is now available in the US and Canada markets.

What They’re Saying

Benefits of One-Bolt

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How to Install

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Learn more about the features and benefits of the G-Fire Model 579 coupling.

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View the Technical Details

Review TFP1856 for detailed technical data, available models, and installation instructions.

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