'/%3E%3C/svg%3E)
Hover image to zoom
Home
Heating Supplies & Parts
Pressure Valves
Combo Pressure Valves
Fill Valve & Backflow Preventer Combination
1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT)
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$137.36 each
In Stock
Get 140 Tue, Jun 17
Order by today, receive Tuesday
MANUALS (4)
'/%3E%3C/svg%3E){kind=small}
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
1/2"
Brass
175 MAX PSI
NPT x NPT Connection
150°F Max Temp
Description
–
573 AutoFill Combo
- Pre-adjustable automatic filling valve with backflow preventer.
- Brass body.
- Max. inlet pressure: 175 psi.
- Max. working temperature: 150°F.
- Setting pressure range: 3?60 psi.
- Preset outlet pressure: 15 psi.
Specs
–
| Size: | 1/2" |
|---|---|
| Connection Type: | NPT x NPT |
| Max Temp (F): | 150°F |
| Max Pressure (PSI): | 175 |
| Material: | Brass |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Compare Similar Products
Brand
Size
Connection Type
Max Temp (F)
Max Pressure (PSI)
Material
CURRENT ITEM
1/2"
NPT x NPT
150°F
175
Brass
You May Also Need
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy1 Replacement Part
Replacement Backflow Gasket
SKU: R0001622
CaleffiNeed help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM