Raypak ELS Sensor Well
Model: 004087F
Product Overview
As a retailer of hot tub spa parts, I’m featuring this precision-engineered sensor well designed specifically for Raypak ELS series heaters. This component provides essential temperature monitoring capability while ensuring proper sensor protection.
Key Features
- Specifically designed for Raypak ELS series
- Professional-grade construction
- Protected sensor housing
- Precision temperature sensing
- Durable materials
- Secure mounting design
Technical Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Raypak |
| Model Number | 004087F |
| Series Compatibility | ELS |
| Application | Temperature Sensing |
| Type | Sensor Well |
| Design | Immersion Style |
| Material | Commercial Grade |
Exploded parts diagrams: This part is shown as item #4 on the Raypak 5.5kW & 11.0kW Heaters; item #4 on the Raypak ELS 552-2 & 1102-2 Heater Models (11/1983 – pres) exploded parts diagrams.
🔧 Raypak 5.5kW & 11.0kW Heaters – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Element Gasket, Raypak ELS 552-2/1102-2, 5 each |
| – | Element Gasket, Raypak ELS 552-2/1102-2/5.5k with 11.0kW |
| – | Heater, RayPak SpaPak, ELS 552-5, 230v, 5.5kW, Complete |
| – | Heater, RayPak, SpaPak, ELS 1102-2, 230v, 11kW, Complete |
| 15 | Wire Kit, Raypak ELS |
| 14 | Dial Plate, Raypak ELS |
| 13 | Knob Stop, Raypak ELS/53A/55A/105A/105B/153/155A/183A/185A |
| 12 | Thermostat Knob,Raypak 53/ELS/53A/55A/105A/105B/151/153,Blk |
| 11 | Indicator Light, Raypak ELS |
| 10 | Toggle Switch, Raypak ELS/53A/151/153/155A/183A/185A, SPST |
| 9B | Thermostat,Raypak ELS/53/105A/105B/153/155A/183A/185B/RP2100 |
| 9A | Thermostat, Raypak |
| 8 | Contactor, DP, 40A FLA, 230v |
| 7 | Hi-Limit, Thermodisc, DPST, Screw Terminal, Surface Mount |
| 6 | Pressure Switch 3029, 25A, Tecmark, 1/8"mpt, SPNO |
| 5 | 46-197-W001K5 |
| 4 | Sensor Well, Raypak ELS ◀ this part |
| 3 | 46-197-W001K3 |
| 1 | 46-197-W001K1 |
Installation Features
- Purpose-built for ELS series
- Precise fit design
- Secure mounting
- Watertight seal
- Easy sensor access
- Tool-free maintenance
Performance Benefits
- Accurate temperature monitoring
- Reliable sensor protection
- Consistent readings
- Long-term durability
- Optimal sensor positioning
Application Uses
- Temperature monitoring
- Sensor protection
- Control system integration
- Safety monitoring
- Performance tracking
Design Advantages
- Protected sensor environment
- Efficient heat transfer
- Corrosion-resistant construction
- Secure sensor retention
- Easy maintenance access
Maintenance Considerations
- Simple sensor replacement
- Regular inspection access
- Easy cleaning
- Minimal maintenance required
- Long service life











