Gardena Reducing Coupling 'Profi from 19mm (3/4") to 13mm (1/2") - Gardena 2830 -20 Ref: GRD2830-20 For hose extensions and conversion from "Profi" Maxi-Flow System to Original GARDENA System. List price £3.19 Grovelands Online price including Nextday Delivery £2.87 Price: £2.87 (Including VAT at 17.5%)