🔧 Seal the deal with Merrill — durability meets effortless precision!
The Merrill MFG 4-Inch Well Seal Cap is a robust, easy-to-install solution designed for 4-inch inside diameter well casings with a 1-1/4 inch drop pipe. Made from durable ABS plastic and zinc-plated steel, it offers secure sealing with retaining nuts for reliable, corrosion-resistant performance.
| Size | 1.25 inches |
| Material | ABS plastic, zinc-plated steel |
| Brand | Merrill |
| Color | Silver |
| Connector Type | Cap |
| Thread Size | 4 |
| Exterior Finish | Zinc |
| Thread Type | UNF |
| Manufacturer | Merrill Manufacturing Company |
| UPC | 642367451707 |
| Part Number | WS400125P-A |
| Item Weight | 1.3 pounds |
| Package Dimensions | 5.6 x 4.6 x 3 inches |
| Item model number | WS400125P-A |
| Batteries Required? | No |
G**D
Knowing the size of your well cassing
Worked fine
N**E
well cap
i had to wait a bit but just what i wanted
J**E
exactly what we needed
Now our well looks like it was installed by a pro, even though we are DIYers. Exactly what we needed.
R**B
Quality. Would recommend replacing bolts with SS if you want to do it once.
Typical Merrill high quality. No issues. The nuts on the bottom side are not captive. I would suggest replacing the bolts with stainless steel bolts and nuts. If you want to do it extra right, then get some nylock nuts or glue the nuts into the recessed housing on the bottom side.
J**.
Well cap
Fit perfect looks great. I have another well that I’m going to pull up and will buy it again.
A**R
Good quality and fit
Good quality and fit
A**S
Well, it's a well cap
Good overall. NPT threads needed to be retapped a bit once I got them, which was my only concern. I wanted a metal one, but all of them are splits. Got this one for my well project and it's better than I thought it would be. I recommend it.
M**Y
Overall it did the job
It really didn't fit tightly in the 4" pipe
Trustpilot
4 days ago
2 days ago
