# Caleffi Automatic Filling Valve Backflow Prevention Pre-Set 1/2" Press Union Inlet X 1/2" Internal Npt Outlet 573006A

**Brand:** [Caleffi](https://shop.coreranger.com/brands/Caleffi)
**SKU:** 573006A
**Price:** $314.43 · in stock
**URL:** https://shop.coreranger.com/product/caleffi-automatic-filling-valve-backflow-prevention-pre-set-1-2-press-union-inlet-x-1-2-internal-npt-700050393

## Specifications

| Spec | Value |
|---|---|
| Model # | 573006A |
| Pack Size | 1 |
| Internet # | 700050393 |
| Returnable | 90-Day |
| Store SKU # | 1015894594 |
| HVAC Product Type | Backflow Preventer |
| Manufacturer Warranty | 90 day parts warranty. |

## Description

The Caleffi 573006A Automatic Filling Valve features a 1/2" press union inlet and 1/2" inside NPT outlet with a backflow preventer, designed for press to NPT conversion and pre-adjustable system pressure control in heating and cooling systems.