BULKHEAD FTNG 1-1/4" FPT, 2-1/2" HOLE Hotsy Pacific Sale! from $32.30 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 1-1/4" FPT Hole Diameter: 2-1/2"