Home / Aztec / DOUBLE BLOCK AND BLEED VALVE, FLANGE X THREAD (MODEL NO. DBB-FBNBT) DOUBLE BLOCK AND BLEED VALVE, FLANGE X THREAD (MODEL NO. DBB-FBNBT) Category: Aztec Related products SINGLE BLOCK AND BLEED VALVE, FLANGE x THREAD (MODEL NO. SBB-FBNT) DOUBLE BLOCK VALVE, FLANGE X THREAD (MODEL NO. DB-FBNT) DIRECTLY MOUNTED FIVE VALVE MANIFOLD 5VMT SEPERATELY MOUNTED THREE VALVE MANIFOLD 3VMS