Caleffi · 2026 catalog
533941HA
½", sweat union in, FNPT out, gauge
Published catalog evidence
Exact manufacturer record
- Code
- 533941HA
- Description
- ½", sweat union in, FNPT out, gauge
- Catalog weight
- 2.1 lb
- Published row
- 533941HA ½", sweat union in, FNPT out, gauge 2.1 -
Verification boundary
What still needs to match
Function and seriesConfirm valve, separator, manifold, fill, control, backflow, or accessory function and exact series.
ConnectionsVerify NPT, sweat, press, PEX, flange or union connection type and size.
Hydronic dutyCheck pressure, temperature, flow/Cv, materials, seals, potable/hydronic approvals, and control compatibility.
InstallationConfirm orientation, envelope, service access, and current Caleffi documentation.
Related catalog codes
Same code prefix
1.9 lb533340HA½", NPT female union in, FNPT out2 lb533341HA½", NPT female union in, FNPT out, gauge2.2 lb533350HA¾", NPT female union in, FNPT out2.3 lb533351HA¾", NPT female union in, FNPT out, gauge2.3 lb533750HA¾", PEX crimp union in, FNPT out2.4 lb533751HA¾", PEX crimp union in, FNPT out, gauge2.3 lb533850HA¾", PEX expansion union in, FNPT out2.3 lb533851HA¾", PEX expansion union in, FNPT out, gauge