Package Includes:
Each sensor consists of 4 parts: vulcanized grommet (1), sensor post (1), washer (1), and 3/8" nut (2).
This listing provides a 10-pack for multiple tank installations or future spares.

Rust-Resistant Construction:
Features a rust-resistant sensor post and hardware, combined with a durable vulcanized rubber grommet, ensuring long-lasting reliability in fresh, gray, or black water tank environments.

Superior Sealing Technology:
The vulcanized grommet, when properly installed and tightened, creates a collapsing pressure system that guarantees a virtually impenetrable and leak-proof seal for your RV water tanks.

Easy Installation:
Simple to install using a 3/8" drill bit and a wrench. Drill the hole, insert the sensor from inside the tank, and tighten the nut to activate the pressure seal—no complex tools or professional help needed.

Universal RV Application:
Designed for standard RV water tank level monitoring systems, these screw-in sensors are suitable for use in fresh water, gray water, and black water holding tanks.