The range primarily refers to the model series of Piston Type Water Hammer Arrestors
The specific model number indicates the size and capacity of the arrestor, measured in "fixture units." Choosing the right one ensures your plumbing system remains quiet and damage-free. Thread Connection (IPS) Sizing Symbol Capacity (Fixture Units) 61 – 113 114 – 154 155 – 330 [5201-5250]
For maximum effectiveness, install the arrestor as close as possible to the fast-acting valve (like those in washing machines or dishwashers) causing the shock. The range primarily refers to the model series
These models are typically lead-free, making them safe for potable water lines. [5201-5250]