The Caleffi R0001458 is a union sealing washer with a 3/4 in connection for Caleffi AutoFill products.
Product data compiled from Caleffi North America technical documentation. Last reviewed July 2026.
FunctionUnion Washer
For LineAutoFill
Connection3/4 in
Warranty2 Years
Key Features
Correct Sealing Washer
Color-coded factory washer restores a drip-free union seal - replace whenever the union is opened.
Genuine Caleffi Part
Factory fitting with correct dimensions and sealing geometry.
Technical Data
| Function | Union Washer |
|---|---|
| For product line | AutoFill |
| Description | 3/4 in Union Washer - Blue |
| Connection size | 3/4 in |
Related Products
Caleffi R00014571-1/2 in Union WasherCaleffi R00014602-1/2 in Union WasherCaleffi 31901A3/4 in TailpieceCaleffi NA100033/4 in Tailpiece
Frequently Asked Questions
What does the Caleffi R0001458 fit?
It is the genuine fitting for Caleffi AutoFill products. Match your host model number and connection size before ordering.
When should the washer be replaced?
Any time the union is opened - a fresh washer is cheap insurance against a weeping union joint.
2-Year Limited Warranty. Backed by Caleffi North America's limited warranty against defects in material and workmanship for two years from date of shipment. See Caleffi's limited warranty for full terms.
- Type:
- Union Washer
- For Product Line:
- AutoFill
- Connection Size:
- 3/4 in
