The 7-5/16" x 7/8" 1260XL-B Water Hammer Arrestor with 3/4" MNPT thread and 12 - 32 fixture unit capacity is used in a mixture of residential, commercial, and industrial water line applications for protection against over-pressure during surges following quick valve closure. Excessive pressure surges are absorbed by the pre-charged air cushion that is permanently sealed within the water hammer arrestor. The 1260XL can be installed within a stud bay, eliminating the need for an access panel. Features include all copper and brass external construction, a temperature range of -40°F to 212°F, and a maximum transient pressure surge of 150 psi following quick valve closure.

• Design reduces pipe banging caused by water hammer
• Eliminates need for access panel through installation within stud bay
• Air chamber is permanently sealed to eliminate excessive pressure surges
• Copper and brass external construction resist corrosion
• Low-lead law compliant
• PDI® Certified WH-201
• ASSE® Listed 1010
• ANSI A112.26.1
• Certified to NSF/ANSI 372 by IAPMO R&T
• Design reduces pipe banging caused by water hammer