[To all users]

• The observation of the water pressure is available in a mess cylinder (500mL) or 500 mL beaker, and it is not needed a special water tank because it has a very soft and sensitive rubber film.

[To teachers]

• Explanation and description of the phenomenon are easily due to its simple structure.

[To students]

• Easy to understand the phenomenon of water pressure for learners depending on seeing the degree of depression of rubber film.

• Body: Transparent acrylic plastic, φ50 x 70 mm
• L shape pipe: Transparent acrylic plastic, φ5 x 300 mm
• O ring: φ45 mm x 2 pieces
• Replacement: Rubber film 2 pieces