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®ISO 320, SS Center Ring, Viton, Alum Retainer$385.00Product Code: MKISO320CRR Category: ISO,LF Flanges and FittingsCentering Ring SS, Viton O-ring, Alum RetainerAvailability: In stock ISO 320, 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) 13.6412.25 Related products ADAPTER, 1/4″ MALE NPT, KF (QF) 40, 304 SS $53.03 TEE, ADAPTIVE, KF (QF) 16 to 1/4″ FEMALE, NPT, ALUM $69.43 TEE, ADAPTIVE, KF (QF) 40 to 1/4″ FEMALE, NPT, ALUM $81.96 Sale! ADAPTER, 1/4″ MALE NPT, KF (QF) 25, 304 SS $51.64 $34.50