Male National Pipe Thread (mnpt), Male Pipe Thread (mpt)
Pressure Switch Amperage
1A
Pole/Throw
Single Pole Normally Open (spno)
Pan Material
Stainless
The part ID 510AD0249 refers to the Gecko DTEC-2 2.0 PSI pressure switch.
This component is widely used in many spa control systems, particularly in Gecko M-Class and S-Class control packs, as well as systems from other major suppliers like Hydro-Quip.
This pressure switch is compatible with a wide range of hot tub brands because it is a standard, universal component in the industry.
Here is an extensive list of spa manufacturers who have been known to use the Gecko 510AD0249 pressure switch (or the systems it is designed for) in their hot tubs:
Balboa (often used as a replacement for M7 systems)
Bullfrog Spas
Cal Spas
Caldera Spas
Coast Spas (Replaces P/N 510AD0173)
Dimension One Spas (Replaces their old P/N 6560-394 red switch)
Emerald Spas
Gecko (The manufacturer of the part itself)
Great Lakes Spas
Hot Spring Spas
Hydro-Quip
Jacuzzi
Len Gordon (used in some of their packs)
Marquis Spas
Master Spas
Polynesian Spas
Spa Builders
Sundance Spas
The switch is a single-pole, normally open (SPNO) design, activating when water pressure reaches 2 PSI, which is a common requirement for ensuring safe heater operation. It is a direct replacement for older plastic versions and other part numbers such as 510AD0167.
