Select a Product Part NumberMaterialHose ID STC040ALAluminum1-1/2" STC050ALAluminum2" STC065ALAluminum2-1/2" STC080ALAluminum3" STC100ALAluminum4" STC040SS316 Stainless Steel1-1/2" STC050SS316 Stainless Steel2" STC065SS316 Stainless Steel2-1/2" STC080SS316 Stainless Steel3" STC100SS316 Stainless Steel4"