Premium Paper Valve Plate Gasket Kits designed for Copeland 3D series industrial compressors including D3D, D3DA, D3DC, and D3DS models. Precision-cut from high-density fiber material with heat-resistant phenolic resin coating for superior durability under extreme pressure conditions. Laser-engraved sealing surfaces ensure perfect alignment and leak-proof performance in refrigeration systems. OEM-equivalent quality with enhanced wear resistance for extended service life. Ideal for commercial refrigeration units, cold storage facilities, and industrial cooling applications. Direct replacement part with exact dimensional accuracy for hassle-free installation. Bulk purchase available for HVAC repair businesses and wholesale distributors. Factory-direct pricing with guaranteed compatibility and performance matching original specifications.