Black rubber with adjustable stainless steel clamp. Flap valve prevents following seas from entering exhaust outlet when stopping or moving slowly. All stainless steel clamps included.
| Brand | Seachoice |
| _Pack | 2 |
| _Pack | 2 |
| _Case | 10 |
| _Case | 10 |
| _Size | 4" |
| _Size | 4" |
| Shipping Details | |
| Weight: | 1.25 lb |
| Length: | 17.75 in |
| Height: | 1.5 in |
| Width: | 6.75 in |