| align="center" style="background:#efefef;"| {{Icon|file=wire-cement_tank_icon.png|alt=Wire-cement tank|width=94|link=Wire-cement tank}} <br> [[Wire-cement tank]]
| align="center" | {{Icon|file=sodis_icon.png|alt=Sodis|width=94|link=Sodis}} <br> [[Sodis]] (Solar disinfection)
| align="center" style="background:#efefef;"| [[Image:{{Icon|file=spray_head_icon.png]] |alt=Irrigation - Spray head|width=94|link=Irrigation - Spray head}}<br> [[Irrigation - Spray head]]
|-valign="top"
| align="center" style="background:#efefef;"| [[Image:{{Icon|file=bamboo_screens_icon.png]] |alt=Groundwater - Bamboo screens|width=94|link=Groundwater - Bamboo screens}} <br> [[Groundwater - Bamboo screens]]| align="center" | [[Image:{{Icon|file=deep_well_pump_icon.png]] |alt=Deep well pump|width=94|link=Deep well pump}} <br> [[Deep well pump]]| align="center" style="background:#efefef;"| [[Image:{{Icon|file=plastic-lined_tank_icon.png]] |alt=Plastic-lined tank|width=94|link=Plastic-lined tank}} <br> [[Plastic-lined tank]]| align="center" | [[Image:{{Icon|file=biosand_filter_icon.png]] |alt=Biosand filter|width=94|link=Biosand filter}} <br> [[Biosand filter]]
| align="center" style="background:#efefef;"| [[Image:pepsi_drip_icon.png]] <br> [[Irrigation - Pepsi drip]]
|-valign="top"