This paper proposes a novel class of wideband metal cavity multiple-mode bandpass filters (BPFs), consisting of a triplemode filter and a quadruple-mode filter. Two degeneration modes in a single metal cavity are excited by using an off-centered approach instead of a traditional corner-cut approach. They work together with the mode to constitute a three-pole wide passband with a fractional bandwidth of 30% at the central frequency of 3.2 GHz. Moreover, an off-centered metal cylinder can properly excite an extra mode in the passband. As such, this mode, mode, and a pair of degeneration modes can be simultaneously utilized to form a quadruple-mode BPF.