The York 028-08312-005 is a comprehensive Gasket & O-Ring Kit engineered specifically for high-pressure sealing applications in York centrifugal chillers

it maintains full backward compatibility with legacy Metasys systems while offering improved environmental sealing

F high-limit threshold

Durable Stainless Steel: Provides superior corrosion resistance and longevity compared to standard brass in aggressive media applications

Technicians should prioritize this genuine Reznor part to ensure the internal heat exchanger surfaces are protected from non-spec flame impingement

Watts 0864945 Repair Kit 30067439-890 The York 028-08312-005 is aThe Watts 0864945 Repair Kit is the professional grade solution for servicing 1 1 2" 25AUB RK water pressure reducing valves. This lead free repair kit, officially designated as RK LF25AUB Z4, is engineered to restore factory spec pressure regulation in high demand plumbing systems. As a veteran preferred direct replacement for 25AUB RK 1 1 2, it addresses common failure points such as fluctuating downstream pressure and bypass leakage caused by