Originally Posted by
Bruce King
Actually, this is what it says: (bold is mine)
Stainless Steel Gas Connectors
Durable, naturally corrosion-resistant 304 stainless steel gas
connectors for indoor or outdoor stationary appliance applications
range in size from 3/8'' OD to 5/8'' OD.
Looks like that is being used for 'part of' a branch line, possibly to an appliance, but it is not being used as 'an appliance connector'.