Product Details: 

• Control Unit Repair Kit
• Made by UDOR
• Part # 8701.25 
• This Kit is used with the Following Pump Pressure Regulator Model #s: 6005.31/N and 6005.31/LP-N
• The Following Items are Included in the Kit: 
• (1) Diaphragm
• (3) O-Rings
• (1) Steel Poppet
• (1) Seat
• (1) Stainless Steel Bolt