Gardena 9mm 0-rings for all OGS connecting pieces, e.g. to click on accessories, nozzles, sprayers and sprinklers 5303-20 Ref: GRD5303-20 For all Original GARDENA System connecting pieces, e.g. to click-on accessories, nozzles, sprayers and sprinklers. Contents: 5 pieces. List price £2.19 Grovelands Online price including Nextday Deliver £1.97 Price: £1.97 (Including VAT at 17.5%)