SN507
Half-dry top, purge valve, Silicone mouthpiece
3 types of materials are available
1).PVC Mouthpiece
2.PVC Tube
3.PVC hose
2).1.SILICONE Mouthpiece
2.PVC tube
2.PVC tube
3.LICONE hose
3) 1.SILICONE Mouthpiece
2.SILICONE Tube
2.SILICONE Tube
3.SILICONE hose