Pentair T40FBK Automatic Water Filler with Fluidmaster Valve
Product Overview
As a retailer of hot tub spa parts, I present this sophisticated Pentair T40FBK automatic water filler. This sleek black model combines reliable functionality with aesthetic appeal, featuring the trusted Fluidmaster valve system for precise water level control in your spa or hot tub.
Key Features
- Premium Fluidmaster valve technology
- Elegant black finish for discrete installation
- Automated water level maintenance
- Professional-grade construction
- Streamlined design
- Complete assembly included
Benefits
The T40FBK automatic water filler eliminates the hassle of manual spa filling while providing dependable performance. Its sophisticated black finish offers superior aesthetic integration, particularly with modern spa designs and dark-colored installations. The Fluidmaster valve mechanism ensures precise water level control, protecting your spa equipment and maintaining optimal operating conditions.
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | Pentair |
| Model | T40F |
| Color | Black |
| Part Number | T40FBK |
| Valve Type | Fluidmaster |
| Material | UV-resistant PVC |
| Assembly | Complete Unit |
| Design | Direct Mount |
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 |
| – | 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 ◀ this part |
| – | Bag Parts Fm Autofill |
| 5 | _T29 |
| 4 | 85-102-W001K4 |
| 3 | _T24 |
| 2 | 85-102-W001K2 |
| 1 | 85-102-W001K1 |
Installation Features
- Universal compatibility with standard plumbing connections
- Straightforward installation process
- Integrated mounting system
- Complete assembly for immediate installation
Applications
- Modern spa installations
- Dark-colored hot tubs
- Contemporary pool designs
- Luxury spa settings
- Residential hot tubs
- Custom installations
Performance Attributes
The Fluidmaster valve mechanism provides reliable automated filling, maintaining consistent water levels for optimal spa operation. The system’s responsive design helps prevent both overflow and low-water conditions, ensuring proper equipment function and user enjoyment.
Design Integration
The black finish offers excellent aesthetics for:
- Dark-colored spa cabinets
- Modern installation themes
- Contemporary outdoor settings
- Custom spa designs











