ISO-QF (KF) Reducer Cross

Crosses accomodate junctions or alignment considerations for a vacuum system design. Crosses are also used as junction adapters between different tubing sizes or flange types.



  • High Vacuum Rated to 1×10-8 Torr
  • Bakeable to 200°C
  • Quick sealing and disassembly



  • Standard: 304 Stainless Steel
  • Alternative: 6061 Aluminum (Contact us for price and delivery)


Product Notes

  • Pulled ports for optimal vacuum performance
  • Reducing intersection for different ISO-QF flange sizes


Options (Contact us for price and delivery)

  • Custom lengths
  • Custom flange combinations
  • ISO-QF large size flanges

*Dimensions are in inches unless otherwise specified

Part IDReference NumberA B 3D CADDrawingUnit PriceIn StockQty, Add To Cart
Part ID4000490Reference NumberQF25xQF16-100×075-R4X-1.97X1.70A 1.7B 1.973D CADLoginDrawingLoginUnit Price$165.00Contact
Part ID4000492Reference NumberQF40XQF16-150X075-R4X-2.56X1.95A 1.95B 2.563D CADLoginDrawingLoginUnit Price$178.001
Part ID4000494Reference NumberQF40XQF25-150X100-R4X-2.56X2.22A 2.22B 2.563D CADLoginDrawingLoginUnit Price$150.00Contact
Part ID4000496Reference NumberQF50XQF16-200X075-R4X-2.76X2.20A 2.2B 2.763D CADLoginDrawingLoginUnit Price$178.00Contact
Part ID4000498Reference NumberQF50XQF25-200X100-R4X-2.76X2.81A 2.81B 2.763D CADLoginDrawingLoginUnit Price$183.00Contact
Part ID4000500Reference NumberQF50XQF40-200X150-R4X-2.75X2.81A 2.81B 2.753D CADLoginDrawingLoginUnit Price$232.00Contact