SELKIRK CORP 173036R 3EFC3 Flex Connector Manufactured in China Easy to use Highly durable 3EFC-3, Expandable, Flexible, Gas Vent Connector Provides simple connection between appliance and type-B vent Designed to simplify connections between gas fired appliances and rigid type B gas vent No elbows are required Expands to 1' to 3'