Dual Feed Fuel Line Setup

After a few variations, including a self made hard line setup that worked well for some time, I bought the fancy chrome line with the gauge port and the lines were filled with some kind of brown dried up garbage.
Read the reviews and discovered I wasn't the only one.

The line seemed fine otherwise, but the T fitting was aluminum or some soft metal.
Sent it back, pos.

Went an fittings with ptfe braided lines. Yes, more $ but never an issue since.