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/ T-258 Piston/cylinder assembly kit
![T-258-Dead Weight Tester-[vendor]](http://cdn.shopify.com/s/files/1/2272/3691/products/T-258_Piston-Cylinder_Assembly_Kit_{width}x.png?v=1564703907)
The T-258 piston/cylinder assembly kit - Type T Buna N used with AMTEK/Mansfield Green Type "T" and Type "R" testers.