1. A water supply line which connects one or more fixtures with the main supply, with a riser, or with another branch.
2. A pipe in which fire sprinklers (i.e., sprinkler heads) are placed.
1. A water supply line which connects one or more fixtures with the main supply, with a riser, or with another branch.
2. A pipe in which fire sprinklers (i.e., sprinkler heads) are placed.