Complete Service Solution – Includes 87161064420, 87161064330, and 8716122264 for a thorough boiler maintenance routine. Enhances Boiler Efficiency – Helps optimize heating performance and prevent future issues. Reduces Downtime & Repairs – Replaces essential components to maintain smooth operation. Compatible with Worcester Boilers – Designed specifically for models requiring these parts. Easy Installation & Maintenance – Simplifies servicing to save time and effort. 12-Month Warranty Included – Backed by a full year of coverage for added peace of mind., Manufacturer: HTS