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®KF (QF) 40 to 3/4 Inch NPT Female Adapter 304 Stainless Steel$65.98Product Code: MKKF4034FNPT Category: Vacuum Adapters KF (QF), NPT, VCR, ISO, CFKF (QF) Flange to Female NPT Adapters,VacuumAvailability: In stock KF (QF) 40 to 3/4 Inch NPT Female Adapter 304 Stainless Steel quantity Add to cart Free Shipping on Orders Over $100**Exclusions apply. See Shipping & Return Policy for details.KF (QF) 40 to 3/4 Inch NPT Female Adapter 304 Stainless SteelA(inch)B(inch)2.171.00Related products Sale! KF (QF) 16 to 3/4 Inch NPT Female Adapter 304 Stainless Steel $41.00 $24.50 Sale! KF (QF) 16 to 1/2 Inch NPT Female Adapter 304 Stainless Steel $39.00 $18.99 (out of stock) Sale! KF (QF) 16 to 3/8 Inch NPT Female Adapter 304 Stainless Steel $39.00 $18.99 KF (QF) 40 to 1/4 Inch NPT Female Adapter 304 Stainless Steel $46.28