Home / Repair Parts / Armstrong Parts / Armstrong Part #961131-225, O-Ring BUNA N Armstrong Part #961131-225, O-Ring BUNA N$6.06 Armstrong Part #961131-225, O-Ring BUNA N quantity Add to cart SKU: 961131-225 Category: Armstrong Parts Description Additional information Description Armstrong Part Number 961131-225, o-ring buna 1-7/8″id x .139cs Additional information Weight 3 lbs