Tender For supply of solid core liquid line filter drier solder type, connection size:12 mm similar to danfoss part no: 023z503291 & type: dcl 164s ( 1/2" solder) confirming to rdso specification no: rdso/pe/spec/0061-2005 (rev-1) or latest suitable for lhb type a.c. coaches. accepted mak e:- danfoss/alco/spolon or any other make with prior approval of rdso. [ warranty period: 3 0 months after the date of delivery ]