12-17-2008, 09:00 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 5,307
Thanks: 0
Thanked 148 Times in 143 Posts
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high efficiency filters are coated and pleated so they are two inches deep [thick] I recall northeast utilities where I worked, they bought filter frames for replaceable media. the media was open cell gray neoprene. a compound like "high tack" was sprayed on the media before installation.
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