Vent filters are available in four hose sizes and available in two types, either as a replacement for an existing filter
or as a complete filter with hose fittings and a mounting bracket for new installations
The SaniGard Replacement Vent Filter 310006 1" has been discontinued.
They have been replaced by the new Eco Holding Tank Vent Filter 311001
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This is an affordable replacement piece for your Sealand SanGard vent filter. This is a top of the line vent filter. I will never go back to any other kind.