- Polyethylene bottles and spouts come with sealer caps
- Spout openings standard .030 inches, can be enlarged by cutting with scissors
- Sealer snaps on easily after using and gives tight seal
15 mL bottles are furnished with size 15 caps; 30 and 60 ml bottles with size 18 caps; 120, 180 and 240 ml bottles with size 24 caps; and 480 ml bottles with size 28 caps.