div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: C:UsersFredcDesktopNeptune Quills · 2020 11 24 · check valve QB options RECOMMENDATIONS For lines smaller than 4 diameter trim quill so chemical is released near center src=https:reader035fdocumentsinreader035viewer202207150561257c64311551308610a363html5thumbnails1jpg 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: C:UsersFredcDesktopNeptune Quills · 2020 11 24 · check valve QB options RECOMMENDATIONS For lines smaller than 4 diameter trim quill so chemical is released near center src=https:reader035fdocumentsinreader035viewer202207150561257c64311551308610a363html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv