# Wilkins 3/4 in. 350 Double Check Backflow Preventer

**Brand:** [Wilkins](https://shop.coreranger.com/brands/Wilkins)
**SKU:** 34-350
**Price:** $221.39 · in stock
**URL:** https://shop.coreranger.com/product/wilkins-3-4-in-350-double-check-backflow-preventer-313727813

## Specifications

| Spec | Value |
|---|---|
| Model # | 34-350 |
| Features | No Additional Special Features |
| Material | Bronze |
| Pack Size | 1 |
| Connection | Sweat |
| Internet # | 313727813 |
| Returnable | 90-Day |
| Application | Non-Potable Water |
| Store SKU # | 1005985835 |
| Indoor/Outdoor | Indoor,Outdoor |
| Inlet Diameter (In.) | 3/4 |
| Product Length (in.) | 12 in |
| Manufacturer Warranty | 3 Year Warranty |
| Outlet Diameter (In.) | 3/4 |
| Maximum Pressure (PSI) | 175 PSI |
| Compatible Pipe Material | Multi-Purpose |
| Maximum Working Temperature (F) | 180 |

## Description

The 3/4 in. 350 Double Check Valve Assembly is used in low health hazard, non-potable water applications for protection against both back siphonage and backpressure of polluted water. A favorite for irrigation contractors, the patented and innovative EZSwap removable pressure vessel allows for simple, cost-effective maintenance and repairs, straightforward line flushing, quick winterization, and water savings. Its stainless steel shut-off valve handles, hardware, and struts are corrosion-resistant and the durable UV resistant reinforced nylon EZSwap Pressure Vessel resists corrosion and mineral build-up to better withstand harsh outdoor conditions.

• Made of steel and UV-resistant nylon for long life
• Flush tool to allow easy flush and save 15 minutes
• Resistant to UV, weather, and corrosion to assure durability