BrassCraft SWB00-18N 3/4" FIP x 3/4" FIP x 18" Coated Stainless Steel 3/4" ID Water Heater Connector Corrugated Stainless Steel With Procoat Clear Corrosion-resistant Coating 100% Leak Tested Integrated Dielectric Sleeve So No Dielectric Union Needed 3/4" Fip X 3/4" Fip 3/4" Full-flow Internal Diameter