RiSeal Spacer StreamLine-1: Riteks’ R&D Lab has been hard at work. Introducing the world’s first dual sealing spacer. This innovative design allows for lower ECD’s without compromising stability or seal. Besides its mechanical enhancements, StreamLine-1 (SL1) boasts an innovative secondary matrix that promotes sealing on a whole new level for unparalleled performance at temps up to 350oF+. Your team will benefit from a cost-effective performance advantage with Riteks Sealing Spacer SL1.