Roho Hybrid Elite Cushion Single Valve 18 x17 x4.25 Modular Seating * H brace construction Wrist and Hand * H brace construction Ultra powerful compressor for both humidification and High Flow High Pressure nebulization of viscous medications * Optimizes medication delivery by aerosolizing to a particle size of < 2 microns * Easy to read Pressure Gauge * 1 Year Limited Warranty Foam base may be wiped with damp cloth * Neoprene rubber cushion insert can be patched or repaired to extend use * Customized Jay foam base and ROHO air insert are fluid resistant * Cushion size: 18 W x17 D * Wide ranges of sizes also available to fit chair widths 14 to 24 upon request * Weight capacity: 550 lbs * HCPCS Suggested Code: E2622 * 2 year warranty Cover with encased comfort foam is machine washable