The 4 way LT PVC pipe fitting, also know as a side outlet tee or 4 way corner fitting is commonly used to build the sides of a box or cube out of PVC pipe. It is also useful to make the ridge on PVC greenhouses or small PVC buildings. Some dog agility customers use the 4 way LT at the base of jump pole stands. All four outlets are non-threaded sockets and are compatible with furniture grade pipe or standard PVC pipe from a hardware store. This fitting is plumbing grade, meaning it has the schedule 40 rating stamped on the part for NSF rated fittings for use with potable water and other plumbing applications.