Is this compatible with older SWG-4HD units

The Carrier P031-4951 is a three-phase (3Ph) unit operating at 208/230V

and industrial refrigeration units

it provides essential overpressure protection for commercial hydronic systems

The unit is equipped with automatic ball checks that conform to ASME requirements

Armstrong Fluid Technology 110108MF-397 Bearing Assembly 322057-301 Is this compatible with olderThe Armstrong Fluid Technology 110108MF 397 Bearing Assembly is a high performance, all in one replacement kit designed specifically for Series S and H in line circulators. As a critical evolution in HVAC pump repair parts, this maintenance free bearing assembly (SBA) eliminates the need for manual oiling or periodic greasing, significantly reducing operational downtime. This genuine OEM pump replacement kit includes a 4. 5 inch centrifugal impeller,