these filters are good filters. There are no leaks, I read the reviews and realized that teflon tape should not be used, it will leak. These two products work best. #5 pipe sealant yellow bath or T plus 2 pipe sealant is Teflon, both cost about $4. apply some silicone to the rubble waterproofing and you're done. Another note: This company will endorse their product.
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