
| Pipe OD (incl. insulation) | Letter Size | Shape | Style |
|---|---|---|---|
| 3/4" - 1" | 1/2" | Coiled | WA |
| 1-1/8" - 2-3/8" | 3/4" | Coiled |
WB |
| 2-1/2" - 3-1/4" | 1-1/4" | Coiled | WC |
| 3-3/8" - 4-1/2" | 1-1/4" | Coiled |
WD |
| 4-5/8" - 5-7/8" | 1-1/4" |
Coiled |
WE |
| 6" - 7-7/8" | 1-1/4" |
Flat | WF* |
| 8" - 9-7/8" | 2-1/2" |
Flat |
WG* |
| Over 10" | 3-1/2" |
Flat |
WH* |