Pros, Join Our TradeMaster Program!
The TH 356 Rigid Bulb Limitem is a pneumatically operated thermostat available either as direct acting or reverse acting in a variety of ranges.

The 356 Rigid Bulb Limitem is recommended for use in controlling duct air temperatures such as mixed air or discharge air. It can also be used as a high or low temperature limit control. In unit ventilator applications it is used as a low limit control. When used with a well, it can be used for water temperature control.

  • Copper motor tube and invar steel rod sensing element
  • Two-valve design eliminates wasting of air
  • 18-inch (457 mm) bulb useful where stratification occurs
  • Flange, locknut and screws for duct mounting included
Read more
Manuals (1)
Temperature Range (F):
30°F to 180°F
Direct Acting
Speak with a real person who will go out of their way to help!
Open Now:
Monday – Thursday
8am–7:45pm ET
9am–7:45pm ET

Product Reviews

Product Q&A

Add-on Item

This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.