Material: FG - Fiberglass Reinforced Polyester, PO - Dry Process White Glazed Porcelain Part No. Finish Size Weight Box Qty. P1753 FG 2-13/16" 12.00 25 P1754 FG 3-3/4" 17.00 25 P1753 PO 3" 82.00 25 P1754 PO 4" 95.00 25 Clamps & Saddles