You know what? You are onto something here. Very observant of you! Hold on to your hats nerds - here we go!
The XPload 45 degree Leg Sled
NP L1141 Angled Leg Press
The version at my gym looks like the rounded tube framing (the base) of the Xpload Leg Sled - with a single weight rod/basic sled like the NP L1141! A mix that I am unable to find a picture of on the net! Could it be that the sled had broken and that they replaced it with the NPL1141 version as a spare part? Provided compatibility. I may have to correct myself here, if memory slips. Will get a photo from the gym next time I’m there.
I wouldn’t be surprised to find Nautilus manufactured a no-name model (NPL1141) to be used by other brands - or if the opposite is at hand here?
Is there any Nautilus leg press machine experts out there, who can clarify this? @strengthmaster