Selkirk Metalbestos 104230 4RV-90 4-Inch 90 Adjustable Elbow, 4&quot Manufactured in China Easy to use Highly durable Designed for use on approved gas appliances in residential and light industrial application Adjustable Stainless steel 90-Degree 6-3/8-Inch x 5-1/8-Inch Designed for use on approved gas appliances in residential and light industrial application Adjustable Stainless steel 90-Degree 6-3/8-Inch x 5-1/8-Inch