Tecmark 3902 Series Universal Pressure Switch SPST Pilot Duty Plastic Thread 1/8 Inch NPT
Why you'll like it
- Reliable Safety Mechanism — Confirms proper water flow through the heater manifold before activation to prevent equipment damage.
- Adjustable Pressure Range — Features a flexible setting range between 1 and 5 PSI for precise system regulation.
- Corrosion Resistant Build — Constructed with durable plastic materials to ensure long operating life in wet environments.
- Universal Integration — Designed to work seamlessly with standard spa and hot tub control systems using 1/8 inch NPT threads.
Product details
Description
The Tecmark 3902 Series Universal Pressure Switch is an engineered component designed for precise automatic pressure control in hot tub and spa heater systems. Built with a durable, corrosion-resistant plastic body and a 1/8 inch NPT thread configuration, this single-pole normally open device efficiently regulates water flow pressure between 1 and 5 PSI.
It safely ensures that adequate water volume flows through the heater manifold prior to activating the heating element, preventing potential system damage. Compatible with popular control boxes from major spa manufacturers, this unit provides reliable performance for maintenance and replacement needs.
How to use
- Ensure power to the hot tub and heating system is completely disconnected before installation.
- Remove the existing faulty switch from the heater manifold and thread the Tecmark 3902 unit securely into the 1/8 inch port.
- Connect the contact wires to the flat spade terminals and verify all wiring matches your control system specifications before restoring power.
Ingredients
Plastic housing, electrical contact terminals, internal diaphragm mechanism, metal spring components.
As printed by the brand. Check the pack label if you have an allergy.
Specifications
| Brand | Tecmark |
|---|---|
| Ships from | USA (sourced directly), checked in Navi Mumbai |
| Sold by | Dropy.in |
Ratings & reviews
From our customers
FAQs
What brand or model of hot tub control system do you have?
The Tecmark 3902 pressure switch is a universal component widely compatible with various control box brands including Gecko, Spa Builders, and Hydroquip used across multiple hot tub models.
Are you trying to troubleshoot an error code or replace a broken part?
Replacing a malfunctioning pressure switch is typically necessary when your spa heater fails to heat or triggers flow-related error codes due to incorrect pressure sensing.
What are the electrical specifications for this pressure switch?
This switch is rated for 1 Amp at 120 Volts AC or 72 VA pilot duty at 24 Volts AC with a normally open SPST contact configuration.
Is this Tecmark pressure switch an authentic USA-imported product available in India?
Yes, this is an authentic USA-imported Tecmark pressure switch. Dropy sources this genuine replacement part directly from the United States to ensure reliable performance for your equipment.
Can the pressure setting be adjusted?
The switch is adjustable from 1 to 5 PSI, though it is generally recommended to avoid modifying factory pressure settings unless necessary, and any adjustments should be made very gradually.
How long will delivery take?
Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.
Is cash on delivery available?
Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.
Are your products genuine?
Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.
What if my order arrives damaged or wrong?
Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.
Is delivery free?
Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.