The SaniGard OEM Vent Filter 310005 1" has been discontinued.
They have been replaced by the new Eco Holding Tank Vent Filter 311001
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Replacing my Sealand Sanigard Vent Filter is the first thing I do each season. This site has great prices! The filter itself works great. Anyone could swap it out, it is so simple! A great product.
Sealand Sanigard Vent Filters keep odor out of your boat. This filter does such a great job and it so easy to install. The cartridges are long lasting, they are good for an entire season!