The Johnson-Fagg Type Insulating Head is a cost-effective choice to protect your tank or vessel from internal corrosion. The Johnson-Fagg Type Insulating Head can be mounted with a 4" Victaulic style clamp on the outside of your tank or vessel. When partnered with a sacrificial anode, the Adair Insulating Head will provide a low maintenance and easily serviceable option to mitigate internal corrosion.

• Designed to work with a 4" Victaulic style clamp
• Constructed out of a metal spacer tube with phenolic insulators on each end