Product Name Rudin Exhaust Flexible Pipe Diameter 1〞-4〞inch (about 25-102mm) length 4〞-12〞inch (about 102-305mm) Color Silver Material The main body is SS304,caps and nipples can be stainless steel 201/304/409 or aluminized steel. Structure 1.Bellows(double layer bellows --with thickness 0.28-0.30mm/layer) 2.Inner/out braid 3.Braid:φ0.3mm,composed with 9 or 12 wires. 4.Nipple 5.Caps: aluminized steel or stainless steel Others Size, diameter and length can be produced as per client's requirements.