how long is it? 5.026 litres / metreignore the outside (10cm), it's unimportant
26 inch
GI stands for galvanized iron. GI Pipe is black steel pipe which has been hot dip galvanized.
it's called a reducer.concentric/eccentric.eccentric changes the center line.concentric stays the same just reduces the pipe size
To convert centimeters to inches, divide by 2.54.