Product review (5 stars): Great Roof Vent
Several months ago, I purchased this vent for my master bath.  Now, I am purchasing a second vent because we are upgrading a second bath.  Product is made to last and is easy to install.  Quality all-metal product. Durable and well manufactured piece of equipment. Great value for the price! I do wish it came with a collar for easy hookup of flex pipe. (Minor problem) I won't hesitate to recommend this one.