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LS-300TFE Series Level Switch, LS-300TFE-22-3-TFE-020-2-1-T
https://www.branom.com/shop/w1123669-ls-300tfe-series-level-switch-ls-300tfe-22-3-tfe-020-2-1-t-557193
https://www.branom.com/web/image/product.template/557193/image_1920?unique=c26756c
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L0 = 20.625"
L1 = 19" NO
L2 = 4" NC