mercoid switch for sale, brand-new and used.

Mercoid model DA-31-153-1 pressure switch. Looks unused in its original box. The box has some storage wear, dusty and dirty.

Mercoid Control DA21-2 Pressure Switch Inventory #3196 DESCRIPTION The Mercoid Control pressure switch is in good condition. It was cleaned. It needs a new mercury bulb switch.

New old stock Mercoid Da-531 pressure switch in the original box. All brass with the mercury filled bourbon tube. Measures about 6" in diameter.

New unused inventory in original boxswitch # 9-64

New unused inventory in original boxswitch # 9-64

Mercoid Control 118 Temperature Switch New 100 - 250 deg. F Inventory #476 DESCRIPTION The Mercoid control switch is new, old stock. There are some minor scratches from handling.

Offered here is a really cool, new old stock mercury switch in excellent condition. The box reads Fig. 9-51R 10" Lead, hoping this is a great clue to exact usage, as I have no clue.

Mercoid control switch. Type: DAW-33-153-1. New old stock, in original box.

Mercoid  Model No: DAF-31-153-9 Electrical Pressure Switch New in box 6 available

NEW!! Mercoid Dwyer Pressure Switch DA-31-153-3A DA311533A NEVER INSTALLED (B28) Description Here's a brand new Mercoid pressure switch model number DA-31-153-3A. It was purchased as a spare and never needed to be put in service.