4" ID UPVC Split Union Dark Grey - UN83-4-UPVC Air Ring Mains use ABS. UPVC is not suitable for use with compressed air. Nominal Bore: 4" MPN: UN83-4-UPVC Product Code: UN83-4-UPVC This is an online offer only for a Limited Time! Availability: In stock Only £73.08 incl VAT. Delivery available to UK/Europe |