The Traditional Vinyl Hidden Hangers are what hold up the gutters in place allowing the rainwater to flow directly to the downspouts.
The differences between the two hangers are that the one piece hidden hanger sits in the gutter and is attached with a fastener. The two piece hidden hanger sits in the gutter but the small piece that comes with it is attached to the fascia surface. There is a slide piece on the hanger that allows it to slide into the small piece.
