Quick Summary
The Seachoice DRAIN PLUG-SCREW TYPE-NYLON – 18781 is a screw type drain plug with an O ring for positive sealing. It is an attached plug design, and the threaded format is meant to maintain sealing under high vibration conditions.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Seachoice |
| Product type | Screw type drain plug |
| Model number | 18781 |
| Sealing feature | O ring for positive sealing |
| Threading | Fine threads to maintain sealing under high vibration conditions |
| Mounting hole | Fits a 1 inch diameter hole |
| Mounting method | Mounts with two #8 screws |
| Mounting flange | 1-1/2 inch x 2 inch |
| Included configuration | Plug is attached |
What to Compare Before Buying
- Hole size: This plug mounts in a 1 inch diameter hole. Compare that size with the opening you need to fit.
- Mounting method: It mounts with two #8 screws. Check that your installation matches that fastening setup.
- Flange size: The mounting flange measures 1-1/2 inch x 2 inch. Confirm that the available surface matches the footprint.
- Sealing style: The O ring and fine threads are part of the screw type design. Compare that setup with the sealing approach you want to use.
Before You Decide
Confirm the 1 inch hole size, two #8 screw mounting, and 1-1/2 inch x 2 inch flange before choosing an offer. The attached plug design is a key part of the fit check.









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