TREG Poly Block Couplings are Australian Design Rules approved. TREG Poly Block Couplings are available in 3T rated weld on and bolt on styles for Electric Brakes. TREG Poly Block Couplings also available as a 3.5T weld on or bolt on coupling for Electric Brakes. TREG Poly Block Couplings must be used with the appropriate 3T or 3.5T TREG Detachable U Vehicle fitting only.
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