supply of supply of silica gel breather 500g capacitysupply of silica gel breather 500g capacity,supply of silica gel breather 500g capacity suitable for auxiliary transformers with uv proof polycarb onate body, aluminium top, bottom and nitrile rubber gaskets with silica gel to suit 1/2 inch bsp threaded pipe. thi ckness of aluminium top and bottom should be 2mm. supplier should submit type test certificate from nabl/ilac a ccredited lab and test certificate of all raw material used for fabrication of breather. height of breather 200 rnm and diameter 120 mm. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 la cs ] ] => limited