Product Description
The vacuum relief valve allows air to enter the VHT tank as it is being emptied (contains 2" sealing grommet 385311840).
Link to VHT diagram: https://www.environmentalmarine.com/vacuum-holding-tank-vht/
The vacuum relief valve allows air to enter the VHT tank as it is being emptied (contains 2" sealing grommet 385311840).
Link to VHT diagram: https://www.environmentalmarine.com/vacuum-holding-tank-vht/