Vetus 185mm x 750mm GRP Tunnel BP185G75

Vetus 185mm x 750mm GRP Tunnel BP185G75

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High quality 750mm GRP Tunnels tunnel with diameter 185mm - suitable for BOW60, 75 & 95 thrusters. Practical tests demonstrate that acoustic material type ARM can help to reduce bow thruster noise. A coat of ARM compound, or a layer of sheet material around the tunnel can reduce the sound level by about 3 dB(A). Two layers can create a reduction of up to 7 dB(A).