Grooved adaptor flange No. 321G Material: ductile iron / steel, red painted or hot dipped galvanized Certified according to standards: FM, UL Other dimensions upon request Available options Available Options: You may also like… Choose optionGrooved tee No. 130 Choose optionGrooved concentric reducer No. 240 Choose optionGrooved end cap No. 300 Choose optionRigid grooved coupling No. 1G