Several "Brands" are manufactured by the same company.
The North Star parts work in several other residential models. We are an independent North Star service center. We have the parts listed below in stock and may be able to secure other North Star parts for you, if you email the part number you are seeking.
Common "North Star" part numbers are usually the same as SEARS part numbers.
We believe the parts are also compatible for the following ( and others not listed ) General Electric Models GNSF18Z01 GXSF27B00 GXSF39B00 GXSS20B00 GNSF23Z01 GXSF27B01 GXSF39B01 PNSF31Z01 GNSF35Z01 GXSF27E01 GXSF39E01 PNSF35B00 GNSF35Z02 GXSF31E01 GXSS17Z01 PNSF39Z01 GXSF23Z01 GXSF35E01 GXSF40H01,GNSH45E Most EcoPure models and the Ecowater Series 500, 518, 1000,1502, 2502 R30 and 4000 use standard 3/4" size parts, And the Model 2100 PF ( older versions only ) , and Series 2502 R39 the larger 1" valve parts. Ecowater proprietary models are 2000, 2002, 2200, 3000, 3002, 3200 and 3500 Series, and we can not get parts. You'd have to get them from local authorized Ecowater Dealer. Be sure to compare part numbers and email if you are not sure. Company logos and product pictures are Registered trademarks of their respective companies.