3/8" X 5/16" OD Reducing Brass Coupling - RDC38-516 Outer Diameter: 3/8" Outer Diameter: 5/16" MPN: RDC38-516 Product Code: RDC38-516 This is an online offer only for a Limited Time! Availability: In stock Only £7.27 incl VAT. Delivery available to UK/Europe |