This complete half union fitting set is specifically designed for Hayward SP1500 pumps. The threaded connection features an inside diameter of approximately 2 3/8", while the slip glue end measures roughly 1 7/8" inside diameter.
Critical Compatibility Note: This union exclusively fits Hayward pumps featuring their proprietary fine thread design. It is NOT compatible with standard pumps that use buttress threading, despite having similar dimensional measurements to standard 1-1/2" x 1-1/2" slip pump unions.
| Product Type | Complete Half Union |
| Union Fitting Application | Pump 1-1/2", Hayward |
| First Plumbing Connection Size | 1-1/2" |
| First Plumbing Connection Type | Female-Hayward-Buttress-Thread-(fhbt) |
