Dairymaster M300 and M400 Stainless Steel Plate Cooler Plate and Gasket The Dairymaster M300 and M400 Stainless Steel Plate Cooler Plate and Gasket is a replacement cooling and sealing component designed specifically for Dairymaster M300 and M400 plate cooler systems . This item includes both the stainless steel cooling plate and the matching gasket, ensuring correct assembly and reliable performance within the plate cooler stack. Plate coolers rely on precision-fitted plates and gaskets to allow efficient heat transfer while keeping milk and water circuits fully separated. Over time, plates can become damaged or distorted, and gaskets can degrade due to pressure, temperature variation, and repeated exposure to cleaning chemicals. Replacing both components together helps restore optimal cooling efficiency and reduces the risk of leaks or cross-contamination. The Dairymaster M300 and M400 Stainless Steel Plate Cooler Plate and Gasket is manufactured from high-quality stainless steel , offering excellent corrosion resistance, durability, and hygienic performance. The supplied gasket is designed to provide accurate sealing between plates, maintaining system integrity during operation