Pentair AutoFill System with Fluidmaster Valve (T40FG)
Product Overview
We stock this Pentair AutoFill system that combines reliable Fluidmaster valve technology with a sophisticated gray finish, designed to maintain optimal water levels automatically.
Key Features
- Integrated Fluidmaster valve
- Professional-grade construction
- Gray finish
- Automatic water level control
- Precision engineered design
- Weather-resistant materials
Technical Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Pentair |
| Valve Type | Fluidmaster |
| Color | Gray |
| System Type | Automatic Fill |
| Design | Integrated Assembly |
| SKU | T40FG |
| Categories | Plumbing, Water Control |
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 ◀ this part |
| – | 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 |
| – | Bag Parts Fm Autofill |
| 5 | _T29 |
| 4 | 85-102-W001K4 |
| 3 | _T24 |
| 2 | 85-102-W001K2 |
| 1 | 85-102-W001K1 |
Design Features
This system integrates Pentair’s engineering expertise with Fluidmaster’s proven valve technology to provide consistent and reliable water level maintenance. The gray finish offers a modern, neutral aesthetic that complements most installations.
System Compatibility
- Works with standard plumbing connections
- Compatible with common water supply systems
- Integrates with existing pool/spa equipment
- Standard mounting configuration
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ProLine Pre Filter PP-6903 | $24.58 | In stock | Add to cart |
🔧 Exploded diagram and parts
This part belongs to the Pentair Automatic Water Leveler/Vanishing Edge AutoFill assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Automatic Water Fillers
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Automatic Water Filler, Pentair, w/ SM Float Valve, White | T40BW | 8 in stock | $156.98 | Add to cart |
![]() |
AutoFill w/Side Mounted Float Valve, Pentair, Gry | T40BG | 3 in stock | $232.91 | Add to cart |
![]() |
AutoFill w/Side Mounted Float Valve, Pentair, Almond | T40BBE | 4 in stock | $151.59 | Add to cart |
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AutoFill w/Fluidmaster Valve, Pentair, Almond | T40FB | Available to order | $256.70 | |
![]() |
Autofill W/Fluidmaster Valve, White | T40FW | 12 in stock | $153.59 | Add to cart |
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Automatic Water Filler, Pentair, w/ Fluidmaster Valve, Black | T40FBK | Available to order | $137.40 |
Complete autofill vanishing edge w/fluidmaster valves
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
AutoFill Vanishing Edge w/Fluidmaster Valve, Pentair, Wht | T40FNW | Available to order | $301.45 | |
![]() |
AutoFill Vanishing Edge w/Fluidmaster Valve, Pentair, Blk | T40FNBK | Available to order | $310.79 |
Complete bag parts fm autofills
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Bag Parts Fm Autofill | 370006 | 2 in stock | $121.90 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Pre-Filter, Disposable, 2-3/4"OD, 10"L, w/Hose Adapter, PP | PP6903 | 70 in stock | $8.08 | Add to cart |
![]() |
Hand Skimmer, Pentair Model 126, Heavy Duty | R121196 | 16 in stock | $40.78 | Add to cart |
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






















