CHECK VALVE 4″ Aluminum Spring-Loaded BSP Threaded 11-TPI
USD 139.99 USD
Specifications
| Brand | Unbranded |
| Type | Check Valve |
| UPC | 783583830638 |
Body and Flapper are cast Aluminum. This is a Concentric design. The whole plate moves against the spring in direction of flow. Not a "flapper" type. One is marked with K3121 (or X3121), and the flappers are stamped 420 720.
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