Tecmark Pressure Switch 4037P

Tecmark Pressure Switch 4037P
Quick Find Code:  31610
Our Price:  £29.80(Inc. 20% VAT)



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  • Easy to test
  • Easy to change
  • Pressure switch

Made by Tecmark

4037P Pressure Switch

Note : No Longer comes with the brass connector, photo is for show purposes only

The Tecmark Pressure Switch screws into the heater tube inside many hot tubs and spas, it has an adjustment on the top but this should not be moved and is factory set.

Used in many brands of hot tub including: Dolphin Spas, Arctic Spas


  • Screw Thread: 1/8 MPT
  • you can connect 2 spade connections or 2 wires to this switch


This component is easily tested for faults, presuming every other aspect of the hot tub works fine and the filters are clean and you have good water flow, simply loop out your existing pressure switch with a small piece of wire and if the problem is resolved replace for a new switch.

*Note: We do not recommend to adjust the pressure switch setting on the top of a Tecmark pressure switch, this has been set by the manufacturer to a specific pressure, if the problem still persists after replacement you will most probably have a different fault on the hot tub or spa.

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Product Specification

Manufacturers Code

MPN:  TDI-4037P

Product Attributes

Quick Find Code:  31610
Brand:  Tecmark
Item Height:  6.5
Item Width:  5
Connection:  2 x Spade
Type:  Pressure Switch
Thread Item Width:  0.9

Please note all Hot tub Parts sold are UK Spec, which means designed for 230 V at 50Hz

The following manuals are available for this product

Need More Detail?

At Hot Tub DIY we want to make it as easy as possible for you to repair your hot tub, the following guides relate to this product.

For a full list of guides please go to our Articles page and choose a section : Hot Tub Help Articles

Hot Tub Heater Guides

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