






🚰 Lock in flawless flow with Eastman’s brass check valve—because your system deserves the best!
The Eastman Brass In-Line Check Valve features a 1 inch IPS threaded connection and a durable brass body paired with a stainless steel spring. Designed to prevent backflow in plumbing systems, it operates smoothly between 5 and 200 PSI, making it perfect for irrigation, pump, and water line applications. Maintenance-free and compliant with safety standards, this compact valve ensures reliable, long-lasting performance.


| Material | Stainless Steel | 
| Brand | Eastman | 
| Item dimensions L x W x H | 1.5 x 0.7 x 1.4 inches | 
| Exterior Finish | Stainless Steel,Brass | 
| Inlet Connection Size | 1 Inches | 
| Inlet Connection Type | Female Iron Pipe | 
| Outlet Connection Type | FIP | 
| Maximum Operating Pressure | 200 Pound per Square Inch | 
| Number of Ports | 2 | 
| Outlet Connection Size | 1 Inches | 
| Specification Met | NSF, ANSI | 
| Global Trade Identification Number | 00091712423355 | 
| Manufacturer | EZ-FLO | 
| UPC | 091712423355 | 
| Part Number | 20405LF | 
| Item Weight | 9.1 ounces | 
| Product Dimensions | 1.5 x 0.7 x 1.4 inches | 
| Item model number | 20405LF | 
| Size | 1 in. | 
| Color | Brass | 
| Style | Brass In-Line Check Valve | 
| Item Package Quantity | 1 | 
| Measurement System | inch | 
| Included Components | valve | 
| Batteries Required? | No | 
C**L
Well made, more reliable than pvc versions
Worth the extra cost over pvc valves: I’ve had too many failures with the latter.
R**L
Good Product
Good product. Worked great.
K**.
Good price
Used in well
T**A
Works well and lead free
I use this 1 inch line when I am filling up a pesticide tank for spraying so I thought it might be a good idea to have a backflow valve on this line just in case. Works well.
K**0
Works well.
No problems. Installs in any direction. My install wasn't exactly horizontal, so it is a good option for you if you need a vertical installation. (Some check valve only work if horizontal). It is well made. Threads not damaged.
E**S
great deal.
worked great.
J**E
Good product and reasonable cost.
This check valve operates smoothly and reliably. It replaced a valve that had become sticky and noisy after 25 years.
R**Y
meets your needs
Fit my requirements. Not sure if it leaks water in a back flow or not. Seems to work okay.
Trustpilot
2 months ago
1 day ago