20” in-line Big Blue type set: Big Blue type filter housing, with blue sump and pressure relief valve, bacteriostatic filter centralizing ring.
Overview:
20” in-line set Big Blue type: Big Blue type filter housing, with transparent sump and pressure relief valve, bacteriostatic filter centralizing ring, instruction and color box. Available with: 1", 1 1/4", 1 1/2" BSP connection. Head is equipped with pressure relief valve which enables release of air accumulated after cartridge replacement.
