The 67040 from Mill-Rose is a 1” Copper Fitting Brush with Plastic Handle, Heavy Duty.  For refrigeration applications (pipe measured by OD rather than ID), the same brush works for fittings which are correspondingly 1/8" larger. For instance, a 1" brush works for standard 1" copper plumbing fittings and for 1-1/8" copper refrigeration fittings.

Features:

• Highest quality brush in the Mill-Rose product line.
• Suitable for both plumbing and refrigeration applications.
• Brush marked with size.
• Made in the USA.

Technical Specifications:

• Size: 1" (for plumbing), 1-1/8" (for refrigeration);
• Type: Heavy-Duty, Professional;
• Stem: Heavy-gauge, galvanized;
• Brush (fill wire): spring-tempered crimpled stainless steel.