Product Details: 

• Diaphragm Repair Kit
• Made by UDOR
• Part # 8700.10 
• This Kit Includes the Following Items: 
• (1) Accumulator Diaphragm
• (6) O-rings
• (3) Desmopan Piston Diaphragm
• The Following Pump Series use this Kit: KAPPA 75 and ZETA 100

You can see the parts included in the kit highlighted in the spec diagram.

The KAPPA 75 pump the kit goes with is also pictured here.