1-1/4 inch poly washer.
Note this size refers to a British Standard Pipe Thread see BSPT link at bottom of page for info.
This washer fits OVER a 1-1/4 inch male BSP thread, the washer itself does not measure 1-1/4 inch !
You can save money on this item when you purchase several at a time. The table below shows the minimum quantities required to benefit from this offer, and how much they'll cost.
||Price per unit