Puretec Gland Nut O-ring suits RI-6K, RI-10K, RI-17KPuretec Gland Nut O-ring suits RI-6K, RI-10K, RI-17KPrice: 28.15 Inc GST*Model:RI-CLMP2.5Buy NowPlastic Cell Clamp, 2.5" for the RI series