I’m interested in the low pressure SLS hoses. Where did you source them from? I’m not sure if they’re the same as the HPF versions, which are a bugger being an unusual metric size, with no simple imperial equivalent. In fact the original hose may even be different sizes at each end!
For the SLS, I just used fuel hose. I found people on the forums who had good luck with it, and MercedesSource reccomend it.
On the SLS cars its quite a short length from the reservoir to the pump. Not sure if the HPF is similar.
This is the low pressure hose, so no fittings, just hose clamps.
The high pressure hose does have fittings, but I didn't have leaks from that one.