







🔧 Upgrade your well setup with effortless serviceability and lead-free durability!
The Merrill MFG MBNL50 is a 1-inch pitless adapter crafted from solid lead-free brass, designed to fit well casings between 5 and 8 inches. Its two-piece design allows permanent mounting to the casing while enabling easy pump removal for maintenance. Certified to meet federal low lead regulations, it features a molded gasket for a secure, leak-proof seal, ensuring long-lasting, reliable performance for submersible well pumps.






| Material | Brass |
| Brand | Merrill |
| Color | Brass (finish) |
| Connector Type | Adapter |
| Thread Size | 1 inch |
| Exterior Finish | Brass |
| Thread Type | Tapered |
| Number of Pieces | 2 |
| Manufacturer | Merrill Manufacturing Company |
| UPC | 642367451875 |
| Item Weight | 2.25 pounds |
| Package Dimensions | 5.75 x 5.2 x 2.8 inches |
| Item model number | MB* |
| Style | Submersible |
| Power Source | Ac/dc |
| Batteries Included? | No |
| Batteries Required? | No |
S**L
Works great for well
We needed this part asap for our well pump that went … lifesaver literally !!
C**S
Got it timely and exactly what we needed
LikedReplacement of an old fitting
M**Y
well made
the valve seems well make and will hopefully last. Time will tell. Installation was easy and the couplings all fit.
M**3
good product
easy to install and had no problems
M**N
main well adaptor
I had a bad one and put this on and now no air leaks so am very happy
B**B
Worked as advertised
Received this promptly and installed in a new well worked just as it was supposed to.
A**R
Ease of installation
It was easy to install and after having pump in made it easy to remove when I had a bad wiring connection.
O**E
It's was the right one when others wanted to charge me bubble of what I paid for this one
Right one
Trustpilot
5 days ago
2 days ago