Supply Of Procurement of HVAC Return Air Filter Frame => Limited

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Supply Of procurement of hvac return air filter frame , hvac return air filter frame with wired mesh media and suppport mesh on both side or apl.hvac filter frame size- 990x340x50mmss grade: 304 with stainless steel (ss) filter media, gr ade (g-2) and supported mesh in ss,tentative drawing attached.certificate of testing of each filter must be provided by the supplier.1. material of construction of filter frame& filteration m edia -ss 304, filteration grade-g-2.2. end use- use in airport line metro trains hvac for air filtration p urpose.3. test certificate from government approved nabl lab must be submitted by vendor regardi ng material of construction and filtration grade4.approval : vendor will supply a sample of filter set fo r approval by dmrc before bulk manufacture and supply of filter.5. all the material must be delivere d exactly as per the dmrc approved sample.warranty: 36 months from the date of supply.delivery: material to be deliverd at concerned depot of dmrc ]