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Black Iron Couplings

(88 products)

We now carry a full line of black malleable iron fittings, including standard and reducing Black Iron Couplings. Standard couplings connect two pieces of same-sized pipe, while the reducer couplings connect two different sizes of pipe. We provide many different sizes for gas and oil lines, all of which are 2" or lower. Creating effective piping systems with black iron is easy and can be done with a little effort and time. We're the web's leading retailers of pipe, fittings, and plumbing supplies due to our healthy supplier relationships. We get massive discounts that we pass on to you! Browse our inventory of couplings below.

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