supply of qvrf relay switzer make model gm 021-00- bd-5-z (-2.5 to 2.5m bar) or dwyer model 1910-1 (0.40 to 1.6 inch wc) or eversure make diaphragm type with snap action micro switch as per m/s. eversure drg no. eee/afr/07. complying to rdso/elrs/tc/0072 - 2001(rev-0). technical adoptors for suction and blower pressure switch along with ms mounting base heavy duty wire braided flexible air pressure pipe with adoptors and connecting pipeqvrf relay switzer make model gm 021-00- bd-5-z (-2.5 to 2.5m bar) or dwyer model 1910-1 (0.40 to 1.6 inch wc) or eversure make diaphragm type with snap action micro switch as per m/s. eversure drg no. eee/afr/07. complying to rdso/elrs/tc/0072 - 2001(rev-0). technical adoptors for suction and blower pressure switch along with ms mounting base heavy duty wire braided flexible air pressure pipe with adoptors and connecting pipe,qvrf relay switzer make model gm 021-00- bd-5-z (-2.5 to 2.5m bar) or dwyer mod el 1910-1 (0.40 to 1.6 inch wc) or eversure make diaphragm type with snap action micro switc h as per m/s. eversure drg no. eee/afr/07. complying to rdso/elrs/tc/0072 - 2001(rev-0). techni cal adoptors for suction and blower pressure switch along with ms mounting base heavy d uty wire braided flexible air pressure pipe with adoptors and connecting pipe [ warranty per iod: 30 months after the date of delivery ] ]