div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: backflowpreventercombackflowpreventercommediacmsWilkins_375_Small_Specification · 350 psi ansi bl 20 materials housing in canada: zurn industries limited drain src=https:reader031fdocumentsusreader031viewer20220308065b14ea2c7f8b9a8f548cbc04html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: backflowpreventercombackflowpreventercommediacmsWilkins_375_Small_Specification · 350 psi ansi bl 20 materials housing in canada: zurn industries limited drain src=https:reader031fdocumentsusreader031viewer20220308065b14ea2c7f8b9a8f548cbc04html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv