Usage Tips:The air pump rebuild kit is a comprehensive solution that provides the items you need to rebuild your air pump; our kit includes 2 sets (4 pieces) of diaphragms, 2 plastic safety pin screws and 16 screws for installation , providing components to restore your air pump to This air pump diaphragm rebuild kit offers a diaphragm made of rubber for reliability; the sturdy material not only ensures a secure fit but also long-lasting functionality, maintaining the integrity of the air pump for a long time These accessories for air pump rebuilds provide an Perfect solution when the air pump is no longer working due to a broken diaphragm; these precision engineered parts and proper square shape and size seamless fit and performance, with Hi blow -60/-80 air pump compatible Each air pump diaphragm rebuild kit is functionally designed and comes with 2 diaphragms, 8 screws, and 1 plastic safety pin without any complications during installation; even if you are not mechanically inclined, the simplicity of the kit Make sure you can manage tasks easily. This septic tank air pump rebuild kit is a cost-saving way to restore the functionality of your air pump with a broken diaphragm; instead of investing in a full air pump replacement, you can repair your air pump and extend its life service life and improve its performance Rest , the air pump rebuild kit is built to withstand repeated use. Its rugged design and high-quality materials reliability and from every diaphragm to every screw. Septic tank air pump diaphragm rebuild kits are engineered to restore the proper functionality of your air pump. Say goodbye to operational issues and enjoy efficient air pump performance again with this well-assembled kit. Notice: Contains small items, please keep from little ones. Colour:As Shown Material:rubber Package Contents: 4 x diaphragm 2 x plastic safety pin screws 16 x screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.