overflow plumbing

[lockrookie]

i dont know the name of the style of piping all i know is i used 1'1/4 on my 50 with one pipe and its super quiet. my brain is over thinking everything but im trying to purchace stuff so once i have my new front pane of glass and eurobracing i can just go once i have the plumbing on hand and the drill bits ordered for the proper size. as far as tthe return plumbing it will be split off to 4 outlets pointed in different directions and difused by live rock at different heights... i wish i could draw out what i am doingbut im notthat talented lol but if you look at my 50g build you will see what i did there and get an idea what im aiming for.