Wilkins: 2 1/2" - 4" - Second Check Module with Retainer Clips for a: 350A / 350ADA Double Check Detector Assembly / 375A {OR} 4" 350 DC / 375 Reduced Pressure Zone Assembly
• 2½" - 4": 350A / 350ADA / 375A
• 4": 350 / 375
(Previously 3509-300B)
Kit Includes:
2nd Check Assembly and 2 Retainer Clips
