Tired of replacing your auto fill valve? Most Pentair autofill canisters include just a toilet-style Fluidmaster valve. The Pentair T40BG swaps in a brass float valve mounted to the side of the canister instead. This changes your plastic autofill arm to a brass one.
Who is this for?
Pool owners who want to swap from a toilet-style fill valve often move to a side-mounted brass float instead. Even just because the side port sit lower on the canister, it takes less abuse during operation than a bottom port would.
*Always confirm the model of your product for compatibility before ordering any part. Please call Shasta Pool Supply if you are not sure and we will be happy to help.*

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Key Features
- Brass side-mounted float valve controls fill without electronics
- Compact 7-inch diameter canister fits standard and vanishing-edge pools
- ABS polymer body resists corrosion and pool chemicals
- Gray color-matched lid and rings
- Automatically meters water in on low level and drains excess on overfill
Technical Specifications
- Diameter: 7 inches
- Material: ABS polymer
- Valve type: Brass float, side-mounted
- Weight: 4.03 lbs
- Color: Gray
Specs
- Part Number: T40BG
- Manufacturer: Pentair
Pro Tips: Pentair T40BG Autofill Gray
Join the equalizer fitting with PVC-to-ABS transition cement rather than standard PVC cement, since the canister body itself is ABS. Owners who've run the float version for over a decade report it as close to maintenance-free as an autofill gets. The equalizer pipe running to the pool needs to stay straight with no 45 or 90 degree fittings, or the line can air lock.
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Straight forward buy with all the parts needed for the job. It's better buying directly from experts than messing with Amazon
Straight forward buy with all the parts needed for the job. It's better buying directly from experts than messing with Amazon
TIM C
"This was the only place I found the item I needed in stock and at a reasonable price. Delivery was fast. Very satisfied."
"This was the only place I found the item I needed in stock and at a reasonable price. Delivery was fast. Very satisfied."
Kevin B
Dan from Shasta office in Surprise went above and beyond to help me with my pool parts. Great job.
Dan from Shasta office in Surprise went above and beyond to help me with my pool parts. Great job.
BILL S
FAQ
Our expert staff answers customer's most asked questions.
Is this part OEM? Or from the manufacturer?
Yes this part is original, from the manufacturer, and contains a manufacturer part number.
Does this part come with any warranty?
Replacement parts do not come with a warranty, although many of our equipment comes with a manufacturer warranty.
Is installation simple?
Pentair makes it easy to install their replacement equipment, with numerous guides and videos available online.
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