Flexor T604AA – SAE 100 R4 Oil Return Hose

We carry Kuriyama Of America Alfagomma Flexor T604AA Oil Return Hose. The T604AA serves a wide variety of applications and is MSHA approved. It’s available in 100 foot lengths and ID ranging from 075 (3/4″) to 200 (2″) in size. It features a black cover that is abrasion, fuel, oil, ozone and weather resistant. The T604AA textile reinforced with a four spiral wire helix to help prevent collapsing.

The T604AA is an excellent choice for low pressure return lines or suction lines. With half the bend radius requirements of SAE J517 100 R4, routing the T604AA is a snap. Service with petroleum based hydraulic fluids, water-glycol and water-fire resistant hydraulic fluids, oil, lubricants, crude oil, fuel oils and water.

T604AA Oil Return Hose

The T604AA is available with the following part numbers

  • T604AA075X100
  • T604AA100X100
  • T604AA125X100
  • T604AA150X100
  • T604AA200X100

Working pressures for the T604AA are as follows

    Constant Pressure

  • 20 Bar (300 PSI) 3/4″
  • 17 Bar (250 PSI) 1″
  • 14 Bar (200 PSI) 1 1/4″
  • 10 Bar (150 PSI) 1 1/2″
  • 7 Bar (100 PSI) 2″


We stock the T604AA and the two piece fittings and ferrules needed for proper assembly. We can also assemble the T604AA per your needs.