The Link Pipe Set (Titanium) L-ME/T/10 is a mandatory product to the Slip-On Line (Titanium) S-ME/T/4H.
If the Slip-On Line (Titanium) S-ME/T/4H is combined with optional Evolution Link Pipe Set (Titan) E-ME/T/7, the Link Pipe Set (Titanium) L-ME/T/10 is not needed.