Pentair Housing – EQ Series | EQ Series Commercial Plastic Pump | 356755 C9419 5 ppm before re-opening for

5 ppm before re-opening for swimmers

locate the existing air relief assembly on your filter and confirm the color matches Black (273550Z)

Pentair Cristal-Flo II CRISTAL-FLO II Drain cap for Cristal-Flo II systems

Dimension verification is essential — universal grids are not a guaranteed fit for every housing configuration

Pentair Housing – EQ Series | EQ Series Commercial Plastic Pump | 356755 C9419 5 ppm before re-opening forThe Pentair Housing EQ Series (356755) is the OEM replacement pump housing for the EQ Series Commercial Plastic Pump line, sold individually. What It Does The pump housing forms the primary hydraulic chamber of the EQ Series pump, directing water flow through the impeller and maintaining the pressure envelope required for commercial circulation performance. A cracked or damaged housing compromises flow integrity and can lead to air entrainment,