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"If there be any among us who [disagree], let them stand undisturbed as monuments of the safety with which error of opinion may be tolerated, where reason is left free to combat it." Thomas Jefferson, March 4, 1801
New Item 2" Back flow Valve. Backwater Valves are designed to prevent backflow in numerous applications where easy service access for maintenance and cleaning is needed. Excellent for use in sanitary or storm sewer drainage systems to prevent waste back up due to inadequate drainage, for balancing multi-level ponds, aquaculture features or storage tank systems, and many other applications. Contains NO METAL, so this is safe for saltwater and reef systems. Backwater Valves have been engineered for improved function and easier service, especially in buried service with use of optional Service-Access Extension available either preassembled with valve or as an add-on kit. Replaceable internal flapper assembly with EPDM Seat. Service-Access Extension available either preassembled with valve, as an add-on kit, or as valve & extension kit components with user supplied pipe. Direct Connection to ASTM D 2665 PVC DWV or other IPS size pipe. Pressure Rated to 43 psi (100' of head) @ 73° (23° C). Conforms to ASME/ANSI A112.14.1 for Backwater Valves. Dimensional Specs & Internal View Here. Made in the U.S.A.
Extension kit for 2" Backwater valve. Does not include the valve. You will also need to supply the 2" pipe in the length needed to complete the assemble. This is just the kit to adapt the extension to the valve. When complete with valve, pipe and kit, it looks like this:
Riser pipe use: 4" Class 125 PVC or 4" Sch 40 PVC Sleeve pipe use: 2" Class 125 PVC or 2" Sch 40 PVC