![Topline Perfect Diaphragm [TP-287]](http://cdn.shopify.com/s/files/1/0459/1081/8968/products/301d62999bd385a86712_1024x1024.jpg?v=1671675573)
![Topline Perfect Diaphragm [TP-287]](http://cdn.shopify.com/s/files/1/0459/1081/8968/products/301d62999bd385a86712_480x480.jpg?v=1671675573)
Newly designed diaphragm with excellent oil resistance and durability. ●Using an oil-resistant material that does not change in hardness with both silicone oil and mineral oil ●By increasing the volume of the air chamber, the repulsion resistance when the damper shaft goes all the way in has been reduced ●Outer diameter By reviewing it, we have improved the sitting position and minimized interference when tightening the cap [4 pieces]