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Estimated delivery: June 3 – June 5
The Koby FlushLock Well Plug Key (FLK) is the security key required to install and remove FlushLock locking well plugs. One key operates all standard FlushLock plugs (FL2, FL280, FL4, FL480). Sold separately from the plugs.
Key Features
- Universal fit — operates all standard FlushLock well plugs (2" and 4", SCH 40 and SCH 80)
- Durable nylon construction — no metal, no corrosion
- Field-essential tool — keep a spare in every field kit
Technical Specifications
| Part Number | FLK |
| Type | FlushLock security key |
| Compatible With | FL2, FL280, FL4, FL480 |
| Material | Nylon |
| Made in | USA |
Compatibility
Works with all standard FlushLock plugs. Does NOT work with FlushLock Vapor Extraction (VE) plugs — use the FLVEK key for VE models.
About Koby Environmental
Koby Environmental has designed and manufactured environmental monitoring well hardware in the USA for over 30 years. Their Torquer, FlushLock, and EasyLock product lines are specified by environmental consultants, remediation contractors, and regulatory agencies nationwide.
Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — we ship within the USA and welcome tax-exempt purchasing for qualified accounts.


