The DANFOSS HEATING 003Z8303 AB-QM DN 20 with TP, Int. is a high-quality brass valve designed for use in plumbing and heating systems. Manufactured by Danfoss, a reputable brand known for producing reliable and durable heating products, this valve is specifically designed for controlling the flow of heat in a heating system. Its compact size and durable construction make it an ideal choice for use in a variety of heating applications.