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 ComponentsCENTER RING, KF (QF) 16, VITON, OVERPRESSURE RING, 304 SS$11.48Product Code: MKKF16CRR Category: KF (QF) Flanges and FittingsKF Centering Ring w/ Viton O-ring and Spacer RingAvailability: In stock CENTER RING, KF (QF) 16, VITON, OVERPRESSURE RING, 304 SS quantity Add to cart Free Shipping on Orders Over $100**Exclusions apply. See Shipping & Return Policy for details.CENTER RING, KF (QF) 16, VITON, OVERPRESSURE RING, 304 SS Related products ADAPTER, 1/2″ MALE NPT, KF (QF) 40, 304 SS $66.99 TEE, ADAPTIVE, KF (QF) 40 to 1/4″ FEMALE, NPT, ALUM $81.96 ADAPTER, 1/4″ MALE VCR, KF (QF) 16, 304 SS $54.96 ADAPTER, 3/4″ MALE NPT, KF (QF) 40, 304 SS $81.96