MAXADAPTOR The Universal Shielded Sewage CouplingMAXADAPTOR Universal Sewer Repair Coupling The adaptability of the MAXADAPTOR Coupling is achieved by means of an EPDM rubber reducing gasket and nylon plastic securing cage, in combination with two AISI 304 series stainless steel shear bands. The reduction process takes place concentrically, uniformly, and separately on each pipe end. The plastic securing cage retains the gasket ends in a locked position, permitting the center section of the gasket