supply of special maintenance kit double check valve for e70 brake system , special maintenance kit double check valve for e70 brake system as per ftr tipl part no.-790002209 consist of following 04 items: - (1) double check vlv w/piston ring, ft rtipl part no.-ft0050398-329 - 01 no. (1.1) valve assy, ftrtipl part no. - 002122500 - 01 no., ( i) valve (dia 60x55lg) ftrtipl part no. - 002421000-01 no., (1.2) piston ring, ftrtipl part no. - 002421500 - 01 no. (2) joints (63.5x73x1) ftrtipl part no. - 002701500 - 02 nos. [ warranty p eriod: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]