Part number: 19-1A19Part description: DUMP & TRIGGER VALVE BLOCK ASSEMBLY, BROWN (E-27)Housing manufactured from Alloy. Comes equipped with 18-1A23 valves & seats. Available with non-sparking screws as EFC Part Number 19-1A19WS. Available manufactured from Engineered Thermoplastic as EFC Part Number 19-1A03. EFC REPLACEMENT VALVES