... brake chamber T30 and T24. 2,T24/24,T30/30 and T24/30 double air chamber. 3,Push pole:227and 255mm 4,black ... "-NPTF5/8"-11UNC2A908KGSHUAJING FACTORY CAN SUPPLY ALL KINDS OF trailer AIR BRAKE CHAMBER FOR SEMI-TRAILERS, according to BPW type product ... brake chamber T30 and T24.2,T24/24,T30/30 and T24/30 double air chamber.3,Push pole:227 and 255mm4,black ...