The Worcester Bosch Greenstar Integral Charging Filling Loop Link 7716192281 is a compact and efficient black unit designed for indoor use. Manufactured in the United Kingdom, this electric and gas-powered filling link is a genuine Worcester spare part suitable for boilers. With a energy efficiency rating of A+++, this plastic tank lining filling loop link is ideal for camper, caravan, and motorhome applications, offering a convenient and reliable solution for your heating needs. Backed by a 1-year manufacturer warranty, this filling link is a high-quality and durable addition to any heating system.