Kuriyama JAFx4 - Four Layer Rubber HoseJAFx4 Four Layer Rubber Hose Revolutionary co extrusion technology creates a Four Layer Hose In One Operation without the use of glues or adhesives thereby forming a homogeneous hose which cannot delaminate. JAFx4 is available in yellow, in lengths of 50 and 100 and can be coupled with NST, NPSH, Storz or other, special order couplings. Shorter lengths are available by special order. Resists burn through Super resistant to abrasion UL19 & Can ULC S511