Master Packing & Rubber Company (MPRC) is a Veteran owned fluid sealing company. Since 1982 we have proudly served the Ethanol, Pharmaceutical, Food, Petroleum Refining, Power Generation, Railroad, Industrial, and Marine sectors. As continual leaders in design and innovation, the goal at MPRC is to be your sealing specialist using only the very best materials for each application. Call MPRC today at 800-397-3429, and let's discuss how we can assist you with your fluid sealing needs. MPRC: Quality products, engineered and manufactured with only the highest-quality materials, from the fluid sealing specialists you've come to trust. Veteran-owned and trusted since 1982.