====== Filtration ======

<cri_photo_thumb 
    stock_photo:labs:nat_prod:instruments:filtration:filtration1 |
    stock_photo:labs:nat_prod:instruments:filtration:filtration1_s.jpg?73 |
    filtration1 
>
<cri_photo_thumb 
    stock_photo:labs:nat_prod:instruments:filtration:filtration2 |
    stock_photo:labs:nat_prod:instruments:filtration:filtration2_s.jpg?73 |
    filtration2 
>
<cri_photo_thumb 
    stock_photo:labs:nat_prod:instruments:filtration:filtration3 |
    stock_photo:labs:nat_prod:instruments:filtration:filtration3_s.jpg?73 |
    filtration3 
>