The plastic insulators fit the outside piece of a dielectric union and separate the galvanized steel nut and brass sweat connection to prevent galvanic corrosion. They are made of nylon and are available in multiple sizes.
- Nylon body
- Dimensions: 1.80" L x 1.75" W x 0.40" Hgt.
- Designed to fit 1-1/4" dielectric unions