Pentair T40BG autofill water leveler in greyPentair Autofill Water Leveler with Float Valve, Grey, T40BG In stock$14599
Pentair T40BG autofill water leveler in grey
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Pentair Autofill Water Leveler with Float Valve, Grey, T40BG

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$14599
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Quick overview

  • Automatic top up The float valve opens the fill line whenever the water drops below the set level and closes again when it recovers.
  • Pentair T40BG The grey bodied autofill assembly, part number T40BG.
  • Check the valve material This part is described as a PVC float valve in one place and a brass float valve in another, so confirm which you are getting if the material matters to you.
  • Grey finish Supplied in grey to blend with a deck or coping.
  • Protects the pump Holding the water line stops the skimmer drawing air during a hot week of evaporation.
  • T40 family Belongs to the Pentair T40 and TF40FN auto filler range, so service parts for the assembly are available.
Full description and specifications ↓

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Product details

The Pentair T40BG is an autofill water leveler in grey. It sits in the deck, ties into a water supply line, and uses a float operated valve to hold the pool at a set level.

What it saves you

Pools lose water to evaporation and splash out, and in hot weather that can be an inch or more a week. When the level falls far enough the skimmer starts drawing air, which is hard on the pump. An autofill removes the daily judgment call: the float drops, the valve opens, and the pool comes back to level on its own.

One thing to confirm

This part is described inconsistently in the source data. One listing calls it an autofill with a PVC float valve and another calls it an autofill with a brass float valve. Both descriptions carry the same part number, T40BG, and the same grey finish. If the valve material matters for your installation, confirm it before ordering.

Service

The T40BG belongs to the Pentair T40 and TF40FN auto filler family, so internals and service parts for that family are the ones to look for when the valve eventually needs attention.

Specifications
Brand Pentair
Manufacturer part number T40BG
UPC 807318013889
Type Autofill water leveler
Color Grey
Float valve material Listed as PVC in one source and as brass in another
Family Pentair T40 and TF40FN auto filler
Shipping weight 4.42 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Is the float valve PVC or brass?
The source listings disagree. One describes this T40BG as having a PVC float valve and another describes it as brass, so ask before ordering if the valve material is important for your installation.
What does an autofill do?
It ties into a water supply line and uses a float to sense the pool level. When evaporation or splash out drops the water, the valve opens and tops the pool back up to the set point, then shuts off.
What color is it?
Grey.
Does it fit the Pentair T40 system?
It is part of the Pentair T40 and TF40FN auto filler family, so replacement internals for that family apply.
Ask your own question