Product Description
The vacuum relief valve allows air to enter the VHT tank as it is being emptied.
Link to VHT diagram: https://www.environmentalmarine.com/vacuum-holding-tank-vht/
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The vacuum relief valve allows air to enter the VHT tank as it is being emptied.
Link to VHT diagram: https://www.environmentalmarine.com/vacuum-holding-tank-vht/