National Coupling manufactures and supplies state-of-the-art pneumatic couplings. Designed for ultimate safety, pneumatic couplings by National Coupling stand the test of time. National Coupling’s basic product design has remained almost identical for over 30 years. Patented value-added engineering changes have subtly enhanced National Couplings’ trusted design. Located at a 50,000 square foot facility near Houston, Texas, National Coupling assures the utmost quality and durability at low cost.
