The hoses are of mediocre quality, and on the inside there are scratches which compromise integrity. Hose diameter isn't consistent throughout, and both end diameters are different on each side. Have yet to install these, as I am not sure they can handle pressure without failure. Really wish they were better quality internally. If so, it might not be as bad.
I'd say maybe this was a bad batch, but both hoses show consistent markings as though this is a common trait with this product.