Caleffi · 2026 catalog
535661HA
1" press union, gauge
Published catalog evidence
Exact manufacturer record
- Code
- 535661HA
- Description
- 1" press union, gauge
- Catalog weight
- 3.1 lb
- Published row
- 535661HA 1" press union, gauge 3.1 -
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.
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