# 1/2" FNPT Union Bronze Dual Check Valve

**Manufacturer:** Watts  
**MPN:** `9D-M3-1/2`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Watts |
| Manufacturer name | Watts |
| Manufacturer | Watts |
| CategoryId | 5800 |
| DimensionUnit | inch |
| GraingerSku | 4A810 |
| Extra Product Name | 1/2" FNPT Union Bronze Dual Check Valve |
| UPC | 098268385168 |
| UnitOfMeasure | EA |
| Weight | 1.2 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 5.8 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.5 |
| moq | 1 |
| MPN | 9D-M3-1/2 |
| multiple | 1 |
| qtyInStock | 833 |
| qtyInStockOverride | -2 |
| SKU | G2798704 |
| tierMinQty1 | 1 |
| tierPrice1 | 98.65 |
| url | https://www.zoro.com/watts-12-fnpt-union-bronze-dual-check-valve-9d-m3-12/i/G2798704/ |
| width | 2.3 |
| Pipe Size | 1/2" |
| Size | 1/2" |
| Pipe or Tube Size - Check Valves | 1/2 in |
| Width | 2-9/16" |
| Length | 4-15/16" |
| Pipe or Tube Size | 1/2 in |
| Length (Straight Wireway) | 4 1/16 in |
| Connection Type | FNPT Union |
| Connection | FNPT x FNPT |
| Body Material | Brass |
| Max Temp - Valves | 250 Degrees F |
| Max Steam Pressure - Valves | Not Rated |
| Mechanism and Body Design | Inline |
| Application - Valves | General Purpose |
| Body Material - Valves | Bronze |
| Connection Type - Check Valves | FNPT x FNPT |
| Flow Design | Dual with Vent |
| Material of Construction | Bronze |
| Standards | ASSE 1012, CSA B64.3 Certified |
| Item | Dual Check Valve |
| Item - Check Valves | Check Valve |
| Max Temp | 250 Degrees F |
| Max Pressure | 175 psi |
| Series | 9D |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G2798704 | 98.65 | 1 | 833 | 1 |
| Raptor Supplies | AD6RWK | 142.6967685 | 1 | None | 1 |
| Toolbox Supply | 10630459 | 105.95 | 1 | None | 1 |
| simsupply.com | ZO-G2798704 | 121.99 | 1 | 397 | 1 |

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Structured data: `/python/html6/product/500/116000000/116186500/part_--9DM312---Watts--9594bf5bc9.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp