Mechanical Joint restrainers (4-24")
Distributed by Conqueror Building Materials Inc.
Mechanical Joint restrainers from Vortex sizes(4-24"). Product markings: "MF" and "CBMI" (Conqueror Building Materials Inc.)
American Society for Testing and Materials
ASTM C900-15 - Pullout Strength of Hardened Concrete
ASTM F1674-05 - Standard Test Method for Joint Restraint Products for Use with PVC Pipe