Hymax 889-56-025059-16 ND 2.5" EPDM Grip Coupling w/ Cathodic Protection 2.32 - 3.43 O.D.There are many situations that require couplings with additional restraining power. Hymax restraint products combine the patented technology of the HYMAX coupling with a unique restraint system, joining pipe ends while preventing any possible movement. HYMAX GRIP CATHODIC is a HYMAX GRIP restraint coupling with cathodic protection. Designed using Hymax's innovation and patented technology, our restraining solutions work with all metal and plastic
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