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- 4.5" FNST X 4" MNPT RL ALUM
| Female Thread Size | 4 1/2 in |
| Male Thread Size | 4 in |
| Material | Hardcoat Aluminum |
| Male Thread | NPT |
| Female Thread | NST (NH) |
| Type | Female Thread x Male Thread |
| Lug | Rocker Lug |
| Weight | 1.93 LB |
| Female Thread Size | 4 1/2 in |
| Male Thread Size | 4 in |
| Material | Hardcoat Aluminum |
| Male Thread | NPT |
| Female Thread | NST (NH) |
| Type | Female Thread x Male Thread |
| Lug | Rocker Lug |
| Weight | 1.93 LB |
