Premium single-spray brass gas valve designed for QS 157B gas cookers. High-grade brass construction ensures durability and corrosion resistance. Precision-engineered nozzle delivers stable flame control for optimal cooking performance. Compatible with standard gas cooker models for easy replacement. Ideal for home kitchens, commercial restaurants, and catering services. Features leak-proof design with reinforced threading for safety. Machined finish prevents gas flow turbulence. Direct OEM replacement part with identical specifications. Bulk order discounts available for wholesale buyers. Worldwide shipping with guaranteed lowest prices.