Omni Filter RS6 30 Micron (R30-BB, 155101-43) Whole House Heavy Duty Pleated Polyester Water Filter Reduces Sediment, Dirt, Sand and Rust UPC 047087300289,Pentek R30-BB #155101-43, American Plumber W30PEHD, OMNI's heavy duty, high-flow Whole House water filter, Model BF7. Of the replacement cartridges available for Model BF7, the RS6 is our most affordable.  This filter is manufactured by Pentair Corporation and is an the equivalent to the R30 BB.  This filter will fit in any Heavy Duty #10BB filter housing.