Caldera / HotSpring Spa Pressure Switch – SPCD73995 (Part #73995)
Reliable pressure sensing for Caldera and HotSpring spa systems.
Product Overview
The Caldera / HotSpring Spa Pressure Switch SPCD73995 is a genuine replacement part designed to ensure proper water flow and heater activation in your spa system. This durable switch maintains safety and performance by monitoring system pressure and preventing heater operation when water flow is insufficient.
It’s a direct OEM replacement for select Caldera and HotSpring spas, ensuring perfect fit and reliable operation.
⚠️ Note
Please confirm your spa’s serial number before ordering to ensure compatibility with your model.
Key Features
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Authentic OEM part – ensures proper operation and compatibility
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Reliable pressure detection to protect the heater from dry firing
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Simple two-wire, three-pin connection for easy installation
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Durable design built for continuous spa use
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Compatible with multiple Caldera and HotSpring spa models
Technical Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Caldera / HotSpring Spas |
| Part Number | SPCD73995 (73995) |
| Connection Type | 2-Wire, 3-Pin |
| Function | Pressure / Flow Detection Switch |
| Compatibility | Monitors water flow to activate heater |
| Installation | Inline threaded mounting |
| Material | Corrosion-resistant components |
Compatible Models
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2006–Current Caldera Spa Models
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2006–Current Hot Spot Spas (except Sprint & Dash models)
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*2006–Current Solana Spa Models
Uses
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Replaces worn or faulty pressure switches in Caldera or HotSpring spa systems
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Maintains correct heater function and system safety
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Ideal for residential and commercial spa maintenance
Summary
The Caldera / HotSpring SPCD73995 Pressure Switch is an OEM replacement component that ensures safe and efficient operation of your spa’s heating system. Designed for 2006 and newer models, this switch provides accurate water flow monitoring and simple installation, helping maintain long-term performance and safety in your spa system.


