4/9 LH and RH concealed fix restrictor arm. Various stud heights to suit different rebates.
4/9B LH and RH concealed fix single arm restrictor. Single arm gives easier disengage action.
4/10A single arm restrictor LH and RH
4/10B short arm restrictor LH and RH
Various stud heights for different rebates on 4/10 also.
Price (per item): £POA