Waterway 2'' n.p.t. plug w/ o-ring- black by Waterway Plastics Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $2.40 SKU Waterway-400-6651B 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Waterway 2'' n.p.t. plug w/ o-ring- black