BULKHEAD FTNG POLY 1-1/2" FPT, 3" HOLE Hotsy Pacific Sale! from $19.50 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Black Polypropylene Double-Threaded with EPDM Gasket Opening Same Size as Outside Diameter 1-1/2" FPT Hole Diameter: 3"