Air Products A/C Expansion Valve The Air Products A/C Expansion Valve that is manufactured to exact OEM specifications for quality fit and performance. OE-Equivalent and Direct fit Application. Meet or exceed OEM specifications. Utilizes the factory style fittings and connectors Compatible with R12 and R134a refrigerant. Applicable gaskets and O-rings supplied with each part.Installation Note: Receiver driers or accumulators, and expansion devices should be replaced any time an A/C system is opened. Individual A/C component warranies may be void if these items are not replaced.Warranty Information: 12 month - 12,000 mile limited warranty against defects in material and workmanship. As a leading industrial gas supplier and the world's largest merchant hydrogen supplier, Air Products brings over 50 years of experience in gas supply and safety