We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🔧 Seal your well with confidence—durability meets precision!
The Merrill WS400125P is a heavy-duty 4-inch well seal cap designed for submersible or jet pumps. Featuring a 1-1/4 inch drop pipe with retaining nuts, it ensures secure, easy installation. Constructed from molded PVC and zinc-plated steel, it offers superior durability and corrosion resistance, making it a top choice for professional-grade well maintenance.
| ASIN | B09MGD5LF5 |
| Batteries Required? | No |
| Best Sellers Rank | #125,979 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #105 in Water Pump Accessories |
| Brand | Merrill |
| Color | White |
| Connector Type | Cap |
| Customer Reviews | 4.5 4.5 out of 5 stars (109) |
| Date First Available | November 24, 2021 |
| Exterior Finish | Zinc |
| Item Weight | 1.3 pounds |
| Item model number | WS400125P-A |
| Manufacturer | Merrill Manufacturing Company |
| Material | ABS plastic, zinc-plated steel |
| Number of Pieces | 1 |
| Package Dimensions | 5.6 x 4.6 x 3 inches |
| Part Number | WS400125P-A |
| Size | 1.25 inches |
| Thread Size | 4 |
| Thread Type | UNF |
| UPC | 642367451707 |
W**E
Replaced a old cast iron one
Fit the casing perfect
K**S
Needed 5” cap
Quality clean work
A**C
Does the job it is intended to do!
Installed this along with a new well pump at the ranch and it worked exactly as it was supposed to.
D**D
Works
Worked great on my 4 inch pipe on my shallow well.
J**Y
Great product
Worked perfectly
J**.
Well cap
Fit perfect looks great. I have another well that I’m going to pull up and will buy it again.
L**E
Bolts are close to drop hole
Had to return as the bolts were too close to the drop hole for me to fit a galvanized T in-between them. Otherwise solid construction.
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.
Trustpilot
1 month ago
2 months ago