NDS swivel fit variable angle fitting combines multiple fixed angle fittings into a single, adjustable fitting making it convenient to have on hand when confronted with misaligned pipes and for routing pipe around obstacles or corners. One Adjustable Fitting for Any Job. The patent-pending Swivel Fit Variable Angle Fitting can be set to any angle from 0 to 90 degrees. It is a convenient solution to tackle any job and is easy and less expensive than connecting multiple fixed angle fittings. Spigot x Spigot drain pipe connection.Find the PV CPL S 35 4 SX4 S at Ace.