Products search Shop By Category Call 866-674-6225AdaptersCF 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 ComponentsBriskHeat®CENTER RING, KF (QF) 50, VITON, OVERPRESSURE RING, 304 SS$16.15Product Code: MKKF50CRR Category: KF (QF) Flanges and FittingsKF Centering Ring w/ Viton O-ring and Spacer RingAvailability: In stock CENTER RING, KF (QF) 50, 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) 50, VITON, OVERPRESSURE RING, 304 SS Related products CENTER RING, KF (QF) 40, VITON, OVERPRESSURE RING, 304 SS $13.14 ADAPTER, 1/4″ MALE NPT, KF (QF) 40, 304 SS $53.03 Sale! ADAPTER, 3/4″ MALE NPT, KF (QF) 25, 304 SS $67.50 $56.00 ADAPTER, 1/2″ MALE NPT, KF (QF) 40, 304 SS $66.99