Products search Shop By Category Questions? Email us!sales@mackvacuum.com AdaptersCF Flanges and FittingsHigh Vacuum Bellows SS HosesValvesWeld TubesISO Flanges and FittingsKF (QF) Flanges and FittingsAlcatel Vacuum Pump PartsLeybold Vacuum Pump PartsPfeiffer Vacuum Pump PartsWelch Vacuum Pump PartsGreases – SuppliesVacuum Rated HosesUniversities OnlyPressure Measurement VacuumCustom Vacuum Components / Vented ScrewsGS Series Ball ValvesSuper Sale Items316 Stainless Steel ComponentsISO 100, SS Center Ring, Viton, Alum Retainer$47.85Product Code: MKISO100CRR Category: ISO,LF Flanges and FittingsCentering Ring SS, Viton O-ring, Alum RetainerAvailability: In stock ISO 100, SS Center Ring, Viton, Alum Retainer quantity Add to cart Free Shipping on Orders Over $100**Exclusions apply. See Shipping & Return Policy for details.A(inch)B(inch) 5.043.89 Related products Sale! ADAPTER, 1/8″ MALE NPT, KF (QF) 16, 304 SS $45.32 $29.00 TEE, ADAPTIVE, KF (QF) 25 to 1/4″ FEMALE, NPT, ALUM $73.28 TEE, ADAPTIVE, KF (QF) 40 to 1/4″ FEMALE, NPT, ALUM $81.96 ISO 400, SS Center Ring, Viton, Alum Retainer $510.00