SIERRA

Exhaust Flapper Valves

18-4458D Exhaust Flapper Valve - 5" or 6" image number 0
SIERRA
Exhaust Flapper Valves
5 out of 5 Customer Rating
Model # 361966 Mfg # 18-4458D
Model # 361966 Mfg # 18-4458D
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Flapper valves prevent backflow and help to protect engines against water intrusion.

Heavy-duty rubber flapper valve keeps following seas from entering exhaust outlet when moving slowly or stopping.

Key Features

  • Heavy-duty rubber
  • Includes adjustable stainless-steel clamp
  • 3", 4", 5"/6" diameters

Type Flapper Valve
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