... has many good features, such as long fiber of filter media, high intensity, high dirt holding capacity, high filtration ... Polypropylene center tube≤0.6MPa, stainless center tube≤0.8MPa Filter media: Premium absorbent cotton, polypropylene, acrylic fiber, glass fiber, ... 28/29/30/32/40/65mm Length of the Filter: 5"(125+2mm)/10"(250+4mm)/20"(500+ ... x H)Packing:plywood case pp String Wound Filter Machine