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always check your specific model’s parts list
alongside drain washers for the lower valve body
the HR54AL315 and HR54AL315A are technically identical components and can be used interchangeably in all documented applications
System Longevity: Prevents premature motor failure by maintaining the original factory load profile and reducing vibration
What is the maximum wall thickness the Ridgid 151 can handle
Grundfos 00596630 Check Valve 321042-401 always check your specific model’sThe Grundfos 00596630 Check Valve is a critical field replacement component designed specifically for Grundfos UP UPS series circulator pumps, including the UP(S)15 42F and SuperBrute UPS15 models. Engineered to prevent recirculation backflow and gravitational thermosyphoning, this replacement check valve kit ensures one way fluid movement within hydronic heating and domestic hot water systems. This authentic Grundfos pump part is housed at the outlet