Home / Plumbing / Brassware / 12″ Standard Ballvalve Arm Sale! 12″ Standard Ballvalve Arm£17.64 Original price was: £17.64.£13.99Current price is: £13.99. This product is available for pickup in Orpington. 12" Standard Ballvalve Arm quantity Delivery Store Collection SKU: 23231WC01 Category: Brassware Product ID: 6608 Reviews Related products Sale! 15Mm Brass G/Vle Bs5154 Short £4.63 Original price was: £4.63.£3.99Current price is: £3.99. Add to basket 15Mm Brass Air Vent Adaptor £0.95 Add to basket 1/2″ Bsp Brass Air Vent Cp £1.54 Add to basket 1/8″ Bsp Auto Air Vent £1.34 Add to basket