Crystal Water Heavy-Duty Pressure Relief Valve Assembly filter-width_10 1/16 inches scheduling

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They can be installed without hardware or holes (in most pools) and prevent unwanted vertical and lateral movement

Crystal Water Heavy-Duty Pressure Relief Valve Assembly filter-width_10 1/16 inches schedulingThis is a Waterway Crystal Water Heavy Duty Pressure Relief Valve Assembly. It is designed for Waterway Crystal Water DE and cartridge pool filters. The assembly includes the gauge. This part replaces 550 4230. Please check your manual to ensure a proper fit.