Home / Repair Parts / Armstrong Parts / Armstrong Part #961131-210, O RING BUNA .75 IDX . Armstrong Part #961131-210, O RING BUNA .75 IDX .$3.31 Armstrong Part #961131-210, O RING BUNA .75 IDX . quantity Add to cart SKU: 961131-210 Category: Armstrong Parts Description Additional information Description Armstrong Part Number 961131-210, o-ring buna 3/4″id x .139cs Additional information Weight 3 lbs