rear brake line question

[kayledao]

is this a simple splitter or a proportioning valve

i know there is a mean leak here going to be replaceing the lines but i don't know what the ?splitter is
this is located between the gas tank and the rear end

 

[planemos]

That is called a tee. It divides the direction of the brake fluid to go from an individual line (coming from the front) into 2 lines (the left rear and right rear calipers). You could most likely re use the tee.