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18-29-705.16  Caulking ferrules.
   Ferrules shall be of red brass and shall be in accordance with Table 18-29-705.16.
Table 18-29-705.16
Caulking Ferrule Specifications
 
Pipe Sizes (inches)
Inside Diameter (inches)
Length
(inches)
Minimum Weight Each
2
2 1/4
4 1/2
1 pound
3
3 1/4
4 1/2
1 pound
12 ounces
4
4 1/4
4 1/2
2 pounds
6 ounces
 
For SI: 1 inch = 25.4 mm, 1 ounce = 28.35g, 1 pound = 0.454 kg