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 Only – FREE STUFF!Custom Vacuum Components / Vented ScrewsGS Series Ball ValvesSuper Sale Items316 Stainless Steel ComponentsCENTER RING, KF (QF) 50, VITON, 304 SS$10.99Product Code: MKKF50CR Category: KF (QF) Flanges and FittingsKF Centering Ring w/ Viton O-ringAvailability: In stock CENTER RING, KF (QF) 50, VITON, 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, 304 SSA(inch)B(inch) 1.972.05 Related products CENTER RING, KF (QF) 50, VITON, 316 SS $18.15 CENTER RING, KF (QF) 16, VITON, 304 SS $4.70 CENTER RING, KF (QF) 40, VITON, 316 SS $13.85 Sale! ADAPTER, 3/4″ MALE NPT, KF (QF) 25, 304 SS $67.50 $56.00