Cart Remove item Thumbnail image Product Price Quantity Subtotal × Socket 1/2 inch BSP F/F £2.53 Socket 1/2 inch BSP F/F quantity £2.53 × 2, 3, 5, 6, 12, 24, 32, 33, 34-Annual maintenance master spares kit (incorrectly called 1019938 in instruction booklet) £19.99 2, 3, 5, 6, 12, 24, 32, 33, 34-Annual maintenance master spares kit (incorrectly called 1019938 in instruction booklet) quantity £19.99 × Check Valve to take 3mm hose see 2559 above £5.78 Check Valve to take 3mm hose see 2559 above quantity £5.78 × Check Valve to take 3mm hose see 2559 above £5.78 Check Valve to take 3mm hose see 2559 above quantity £5.78 × 4-Lid ONLY for Koi Air 50/65 £0.00 4-Lid ONLY for Koi Air 50/65 quantity £0.00 × Spare diaphragm only, pack of 2 £0.00 Spare diaphragm only, pack of 2 quantity £0.00 Coupon: Apply coupon Update cart Cart totals Subtotal £34.08 Shipping Calculate shipping Country / region: Select a country / region… IrelandIsle of ManUnited Kingdom (UK) State / County: City: Postcode / ZIP: Update Total £34.08 (includes £5.67 VAT) Proceed to checkout