Original: 26d2529 Pilot Vf Ng Man/tstat (m178) 26d2529 Optimized: Genuine Honeywell 26D2529 Pilot VF NG Manifold/Tstat (M178) - Replacement Gas Valve for Furnaces & Boilers - Perfect for HVAC Repair & Maintenance (Note: Since the original title appears to be a part number/model number with unclear product details, I made some reasonable assumptions about it being a Honeywell gas valve component based on the format. For best results, please verify the exact product specifications and brand.)