Home / Plumbing / Brassware / 22Mm Diff/Bypass Valve 872 Sale! 22Mm Diff/Bypass Valve 872£22.61 Original price was: £22.61.£16.99Current price is: £16.99. This product is available for pickup in Orpington. 22Mm Diff/Bypass Valve 872 quantity Delivery Store Collection SKU: 66201WC01 Category: Brassware Product ID: 7108 Reviews Related products 1/8″ Bsp Cp Manual Air Vent £0.51 Add to basket Sale! 28Mm Brass Cxc Bs Gatevalve £11.90 Original price was: £11.90.£8.99Current price is: £8.99. Add to basket Sale! 28Mm Brass G/Vle Bs5154 Short £8.67 Original price was: £8.67.£6.99Current price is: £6.99. Add to basket 1/2″ Bsp Brass Air Vent £1.34 Add to basket