The 826-200-CP from PHD is a 2” Copper Plated Pipe Strap. It secures 2" (2-1/8" OD) copper pipe flush to a mounting surface.

 
Technical Specifications:

• For Copper Pipe Size: 2" (2-1/8" OD);
• Material: Low Carbon Steel;
• Finish: Copper Plated;
• Overall Length: 5-3/8";
• Overall Height: 2-9/16";
• Length (Hole Center to Hole Center): 4-1/8".