
MARINESURPLUS.COM
Vacuum Breaker, 3/4 In., FIPxGHT, 125 psi
Description
This compact vacuum breaker, model 108‑904, is designed for reliable backflow prevention on hose bib connections. Constructed from durable brass, it’s built to protect potable water systems (in non‑restricted uses) by preventing contaminated water from seeping back into the supply—ideal for typical residential or light commercial applications.
Physical Dimensions
Attribute |
Value |
Width |
1 5/16 in |
Height |
1 11/32 in |
Overall Length |
1.25 in |
Size |
3/4″ |
Pipe Size |
3/4″ |
Nominal Valve Size |
3/4″ |
Connection Size - Side 1 |
3/4 in |
Connection Size - Side 2 |
3/4 in |
Mechanical & Connection Details
Attribute |
Value |
Item |
Vacuum Breaker |
Valve Series |
GAV |
Vacuum Breaker Style |
Hose Bib Vacuum Breaker |
Connection Type |
FIP x GHT |
Connection |
FIP x GHT |
Connection Type - Side 1 |
IPS |
Connection Gender - Side 1 |
Female |
Connection Type - Side 2 |
GHT |
Connection Gender - Side 2 |
Male |
Hose Bib Securing Mechanism |
Non-Removable |
Includes Atmospheric Vent |
Atmospheric Vent Included |
Includes Freeze Protection |
No Freeze Protection |
Material Specifications
Component |
Material |
Body Material |
Brass |
Seal Material |
Buna-N |
Spring Material |
304 Stainless Steel |
Check Mechanism Material |
304 Stainless Steel |
Body Finish |
Rough Brass |
Operating Conditions
Attribute |
Value |
Max. Pressure |
125 psi |
Maximum Pressure - Operating |
125 psi |
Cracking Pressure |
3 psi |
Flow Rate |
6 gpm |
Operating Temperature - Minimum |
34°F |
Operating Temperature - Maximum |
160°F |
Temp. Range |
Up to 180°F |
For Media |
Water |
Compliance & Warranty
Attribute |
Value |
Standards |
ANSI B1.20.7, ASSE 1011 |
Manufacturer Warranty |
1 year |
Restrictions
- WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
-
This product is not intended for potable water applications (human consumption – drinking and cooking) and has not been designed to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable water applications. This item is for use, only, in non-potable (non-human consumption) water applications.
- ***This is a restricted item. It cannot be used in the USA for potable water applications.