Product Description - Replace Compatible Fits? 625.347120, 625.347001, 42-34370, 42-34373, 3437017, 3437327 And Many Others Compatible Carbon Water Filters.... (2-Pack) ? ? One 5 Micron=PREFILTER............ One 1 Micron=POST FILTER. ???????????THESE ARE FACTORY?SEALED?FRESH! Filter description Pre Filter 5 Micron Carbon Block Cartridge Features Class 1 Chlorine, Taste & Odor Reduction Made with Premium Quality Coconut Shell Activated Carbon 5 Micron Filtration 5,000 Gallon capacity @ 1 PPM Chlorine with 98% chlorine removal at end of cartridge life. Flow rate: 1 GPM Cartridges are individually shrink wrapped. NSF Certified under manufacturer's part # CBC-1010AAC. Post Filter 1 Micron Carbon Block Filter Cartridge Features Class 1 Chlorine, Taste & Odor Reduction Made with Premium Quality Coconut Shell Activated Carbon 1 Micron Filtration 3,500 Gallon capacity @ 1 PPM Chlorine with 85% chlorine removal at end of cartridge life. Flow rate: 1 GPM Cartridges are individually shrink wrapped. NSF Certified under manufacturer's part # CBC-1010AAC. Thank you for your visiting Product information - Part Number: 42-34370 - Item Weight: 2 pounds - Product Dimensions: 10.8 x 3 x 5.8 inches