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|align="center" valign="top"| {{Icon|file=Icon_biosandsafe_water_systems_icon.png|alt=HWTS - Filtration Chemical - general|width=94|link=HWTS - Filtration Chemical - general}}<br> [[HWTS - Filtration Chemical - general]]
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{|style="height:140px; background:#efefef"
|align="center" valign="top"| {{Icon|file=safe_water_systems_iconIcon_biosand.png|alt=HWTS - Chemical Filtration - general|width=94|link=HWTS - Chemical Filtration - general}} <br> [[HWTS - Chemical Filtration - general]]
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{|style="height:140px; background:#efefef"
|align="center" valign="top"| {{Icon|file=CT iconsafe_water_systems_icon.png|alt=Centralized treatmentCT - Chemical - general|width=94|link=Centralized treatmentCT - Chemical - general}} <br> [[Centralized treatmentCT - Chemical - general]]
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{|style="height:140px; background:#efefef"
|align="center" valign="top"| {{Icon|file=Icon_biosand.png|alt=CT - Filtration - general|width=94|link=CT - Filtration - general}} <br> [[CT - Filtration - general]]
|}
{|style="height:140px; background:#efefef"|align="center" valign="top"| {{Icon|file=safe_water_systems_iconHWTS physical icon.png|alt=CT - Chemical Physical - general|width=94|link=CT - Chemical Physical - general}} <br> [[CT - Chemical Physical - general]]
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{|style="height:140px; background:#efefef"
|align="center" valign="top"| {{Icon|file=HWTS physical testing icon.png|alt=CT - Physical Testing - general|width=94|link=CT - Physical Testing - general}} <br> [[CT - Physical Testing - general]]
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{|style="height:140px; background:#efefef"
|align="center" valign="top"| {{Icon|file=Commercial treatment and testing systems icon.png|alt=Commercial treatment and testing systems|width=94|link=Commercial treatment and testing systems}} <br> [[Commercial treatment and testing systems]]
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{|style="height:140px; background:#efefef" |align="center" valign="top"| {{Icon|file=testing CT icon.png|alt=Testing - generalCentralized treatment|width=94|link=Testing - generalCentralized treatment}} <br> [[Testing - generalCentralized treatment]]
|}
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