GRAV has redesigned all of their standard water pipes to have a lower water line and a better pull. The simple Straight tube with a disc perc is meant to offer a variety of water line options and tons of percolation. All these bases were given a thicker, more honed in design to be durable and long lasting. The Ice restriction has been raised to prevent back splash better. Go for the big rips with these new and improved straight pipes.Specs: