10pcs Diaphragm Replacement Parts for Aquarium Accessory Durable Rubber , Black, 1

Description:

- Made of EPDM rubber, has good aging resistance.

- quiet and long service life.

- Suitable for aquarium air oxygen pump.

- Size A: Outside diameter:3.5cm/1.38 inch, Inner diameter:2.4cm/0.94 inch,thickness:1.5cm/0.59 inch,Height:1.2cm/0.47 inch

- Size B: Outside diameter:3.5cm/1.38 inch, Inner diameter:3cm/1.18 inch,thickness:1.5cm/0.59 inch,Height:1cm/0.39 inch

Package Includes: 10 Pieces Air Pump Rubber Accessories