O-Ring Seals Kit for the Smach 1500A This O-Ring Seals Kit consists of; 1 x 17502002 Beater Seal - Red 1 x 17502008 3 x 17501050 Silicon O-Ring Medium Clear 2 x 17501022 NBR O-Ring Black 1 x 17501021 NBR O-Ring Black Small 3 x 17501079 O-Ring Small Clear