Dairymaster Water Heater Blanking Cap & Gasket – 1¾” BSP The Dairymaster Water Heater Blanking Cap & Gasket – 1¾” BSP is a strong, reliable sealing component designed to securely close unused ports on Dairymaster water heaters. Built for tight, leak-free sealing , this cap and gasket set ensures your hot water system maintains correct pressure, temperature stability, and overall efficiency during daily dairy wash operations. Manufactured from high-quality, corrosion-resistant materials , the blanking cap provides long-term durability against moisture, heat, detergents, and chemical cleaning agents. The 1¾” BSP threaded connection delivers a precise, secure fit to Dairymaster heater ports, preventing leaks and helping protect the internal chamber from contamination, limescale, or debris ingress. The included gasket is engineered for high-temperature and pressure resistance , ensuring a dependable seal even under continuous heating cycles. Together, the cap and gasket maintain system integrity, support efficient water heating, and help prolong the working life of the heater unit. Ideal for heater maintenance, port protection, or replacing worn sealing components, this set installs qu
