2"-4" Deringer Check Rubber Kit
Details
Details
Deringer: RK-BFD-1140 - 2"-4" Rubber Rebuild Kit for Deringer 20(X) - 50(X) and the Magnum 20(X) & 40(X).
Kit Includes: Silicone Rubber Elastomer Discs, Check Valve Seat O-Rings, Cover Seal O-Ring, Check Retainer Bolt O-Rings
Manufacturer: Deringer
Size: 2 Inch, 2 1/2 Inch, 3 Inch, 4 Inch
Product model: 20 / 20G , 30 / 30G , 40 / 40G, 50 / 50G
Size: 2 Inch, 2 1/2 Inch, 3 Inch, 4 Inch
Product model: 20 / 20G , 30 / 30G , 40 / 40G, 50 / 50G
Maintenance Manual Deringer 20 2 1/2" - 4" Maintenance Manual Deringer 20G 2 1/2" - 4" Spec Sheet Deringer 20 Spec Sheet Deringer 20G 
How to Maintenance a 2 ½" - 4" Deringer 20 Double Check Backflow Preventer