Pentair Vanishing Edge AutoFill System (T40FNW)
Product Overview
As a retailer of hot tub spare parts, I’m featuring this Pentair AutoFill system specifically designed for vanishing edge installations, incorporating a reliable Fluidmaster valve mechanism in a clean white finish.
Key Features
- Integrated Fluidmaster valve
- Vanishing edge compatible
- Professional-grade construction
- White finish
- Automatic water level control
- Precision engineered design
Technical Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Pentair |
| Valve Type | Fluidmaster |
| Application | Vanishing Edge |
| Color | White |
| System Type | Automatic Fill |
| Design | Integrated Assembly |
| SKU | T40FNW |
| Categories | Plumbing, Water Levelers |
Exploded parts diagram: This part is shown on the Pentair Automatic Water Leveler/Vanishing Edge AutoFill exploded parts diagram.
🔧 Pentair Automatic Water Leveler/Vanishing Edge AutoFill – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Automatic Water Filler, Pentair, w/ SM Float Valve, White |
| – | AutoFill w/Side Mounted Float Valve, Pentair, Gry |
| – | AutoFill w/Side Mounted Float Valve, Pentair, Blk |
| – | AutoFill w/Side Mounted Float Valve, Pentair, Almond |
| – | AutoFill w/Fluidmaster Valve, Pentair, Gry |
| – | AutoFill w/Fluidmaster Valve, Pentair, Almond |
| – | AutoFill Vanishing Edge w/Fluidmaster Valve, Pentair,Wht ◀ this part |
| – | AutoFill Vanishing Edge w/Fluidmaster Valve, Pentair,Gry |
| – | AutoFill Vanishing Edge w/Fluidmaster Valve, Pentair,Blk |
| – | AutoFill Vanishing Edge w/Fluidmaster Valve, Pentair,Almond |
| – | Autofill W/Fluidmaster Valve, White |
| – | Automatic Water Filler, Pentair, w/ Fluidmaster Valve, Black |
| – | Bag Parts Fm Autofill |
| 5 | _T29 |
| 4 | 85-102-W001K4 |
| 3 | _T24 |
| 2 | 85-102-W001K2 |
| 1 | 85-102-W001K1 |
Design Features
This system combines Pentair’s engineering expertise with Fluidmaster’s trusted valve technology to provide reliable automatic water level maintenance for vanishing edge installations.
System Compatibility
- Designed for vanishing edge pools and spas
- Works with standard plumbing connections
- Compatible with common water supply systems
- Integrates with existing automation
Installation Guidelines
- Verify proper water supply connection
- Ensure level mounting
- Check valve operation
- Test automatic filling function
Maintenance Tips
- Regular valve inspection
- Monitor fill performance
- Check for proper leveling
- Verify water level accuracy
















