This white Hayden 45° Short Spogot is designed to couple a pipe and an elbow or wye together where that angle is needed. Two of these are often used with a 45° Double Wye #2045-1 where two in-line branches join with a main pipe line at a 90° angle.

If a line were drawn through the center of the curve, it would form a 45° arc with a 1" radius. One opening is female to mate with the standard "Schedule L" thin wall PVC pipe while the other is male to mate with an elbow, tee, wye, etc.