2 1/2" -4" 375A / 375ADA 1st Check Assembly (Grooved Body Only) 4" 475 / 475DA 1st Check Assembly
Manufacturer: Wilkins
Size: 2 1/2 Inch, 3 Inch, 4 Inch
Product model: 375A, 375ADA
Size: 2 1/2 Inch, 3 Inch, 4 Inch
Product model: 375A, 375ADA
Specification Sheet Installation and Maintenance Instructions 2.5" - 6" Repair Parts Guide 
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