Cart Remove item Thumbnail image Product Price Quantity Subtotal × 2, 3 - Foam air filter and seal. **SPECIAL OFFER PRICE** (RRP £3.05) £1.14 2, 3 - Foam air filter and seal. **SPECIAL OFFER PRICE** (RRP £3.05) quantity £2.28 × 7, 8-Base with feet for Koi Air 50/65 £0.00 7, 8-Base with feet for Koi Air 50/65 quantity £0.00 × Extension tube rigid Black 15cm long. M/M threads, 1/2 inch BSP £4.73 Extension tube rigid Black 15cm long. M/M threads, 1/2 inch BSP quantity £4.73 × 9, 10, 28, 30, 31 - Valve chamber including flapper valves £0.00 9, 10, 28, 30, 31 - Valve chamber including flapper valves quantity £0.00 × Extension tube rigid Black 30cm long. M/M threads, 1/2 inch BSP £5.54 Extension tube rigid Black 30cm long. M/M threads, 1/2 inch BSP quantity £5.54 × 6, 33, 34-Bottom air seal and outlet foam set £0.00 6, 33, 34-Bottom air seal and outlet foam set quantity £0.00 × 4-Lid ONLY for Koi Air 50/65 £0.00 4-Lid ONLY for Koi Air 50/65 quantity £0.00 × 2, 3-Intake foam seal + intake foam filter. **SPECIAL OFFER PRICE** (Usual price £3.05). Only 2 remaining in stock. £1.14 2, 3-Intake foam seal + intake foam filter. **SPECIAL OFFER PRICE** (Usual price £3.05). Only 2 remaining in stock. quantity £1.14 × 5-Cover lid top seal. **SPECIAL OFFER PRICE** (RRP £2.99) £1.14 5-Cover lid top seal. **SPECIAL OFFER PRICE** (RRP £2.99) quantity £1.14 × Extension tube rigid Black 30cm long. M/M threads, 1/2 inch BSP £5.54 Extension tube rigid Black 30cm long. M/M threads, 1/2 inch BSP quantity £5.54 × 24-In /out flapper valves (4) mushroom shape £0.00 24-In /out flapper valves (4) mushroom shape quantity £0.00 × Air stone 50mm ball shape to take 3mm hose £3.69 Air stone 50mm ball shape to take 3mm hose quantity £3.69 Coupon: Apply coupon Update cart Cart totals Subtotal £24.06 Shipping Calculate shipping Country / region: Select a country / region… IrelandIsle of ManUnited Kingdom (UK) State / County: City: Postcode / ZIP: Update Total £24.06 (includes £4.00 VAT) Proceed to checkout