Since the size of the gasket is based on the size of the pipe fitting, it is difficult to determine the size of the gasket based on it's dimensions. The following are nominal dimensions for Standard TC Style Gaskets and are for reference only.
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SIZE
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I.D.
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O.D.
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| 1/2" (Mini-Clamp) | 7/16" | 7/8" |
| 3/4" (Mini-Clamp) | 5/8" | 7/8" |
| .99" (Non-Standard) | 3/4" | 1-1/3" |
| 1" | 7/8" | 2" |
| 1-1/2" | 1-3/8" | 2" |
| 2" | 1-7/8" | 2-1/2" |
| 2-1/2" | 2-3/8" | 3" |
| 3" | 2-7/8" | 3-1/2" |
| 4" | 3-7/8" | 4-1/2" |
| 5" | 4-3/4" | 5-5/8" |
| 5-1/2" (Non-Standard) | 5-1/4" | 6" |
| 6" (Large Clamp) | 5-3/4" | 6-1/2" |
| 8" (Large Clamp) | 7-3/4" | 8-1/2" |
EPDM Tri-Clamp Gaskets
Buna Tri-Clamp Gaskets