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Manufacturer
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Size
Expansion Relief Valves
![Expansion Relief Valve Image](/images/products/cutout.gif)
Model # 78DI Series (Morrison Brothers)
Expansion Relief Valve
1/2 in.; 25, 40, or 100 PSI, Ductile Iron
Starting at $129.99
![Expansion Relief Valves Image](/images/products/76DI (5).jpg)
Model # 76DI Series (Morrison Brothers)
Expansion Relief Valves
1/2 in., 25 or 50 PSI, Ductile Iron (Leak Detection System Compatible)
Starting at $374.74
![Expansion Relief Valve Image](/images/products/076S.gif)
Model # 76S Series (Morrison Brothers)
Expansion Relief Valve
1/2 in., 25 or 50 PSI, Stainless Steel (Leak Detection System Compatible)
Starting at $385.71