Perfect Compatibility: This Recreational Vehicle toilet seal set contests 300, 310, and 320 series vehicle toilets, replacing original parts 385345892 ( flange), 385311658 ( flush seal), and 385311652 ( base seal) Ideal for restoring your vehicle toilet setup Complete Seal Assembly: Includes all needed components: 1x 3 inch socket floor flange, 1x flush ball seal, 1x toilet seal, 2x decorative bolt covers, 2x fasteners, 2x washers, 2x brass bolts, 4x screws, and 4x expansion anchors—offering full installation convenience Stops Leaks & Odors: Forms tight seal around toilet base to water seepage and unwanted smells, keeping vehicle interior clean Travel with confidence without plumbing issues Robust substance Build: Made from premium rubber and sturdy ABS, this vehicle toilet gasket and flange combination prevents leaks and odors while providing strength and rust resistance for prolonged service life Easy Installation Steps: Simply remove old flange and seals, clean the base, then install new vehicle toilet socket floor flange and seals Clear " This Side Down " markings help achieve proper placement for a secure, leak resistant fit