Spa & Hot Tub Equipment
Explore spa and hot tub equipment, including pumps, heaters, filters, jets, controls, covers and water-care systems for portable and in-ground setups.
Main categories and planning priorities
Explore spa and hot tub equipment, including pumps, heaters, filters, jets, controls, covers and water-care systems for portable and in-ground setups.
Circulation and jet pumps
Low-flow circulation pumps support filtration and heating, while higher-flow jet pumps power hydrotherapy zones.
Spa heaters
Electric resistance heaters are common in portable spas; capacity, flow and control-pack compatibility must match.
Filters and housings
Cartridge filters remove suspended debris and require exact dimensions, thread style and flow compatibility.
Compare the main equipment categories
| Category | What it covers | Selection rule | Options |
|---|---|---|---|
| Circulation and jet pumps | Low-flow circulation pumps support filtration and heating, while higher-flow jet pumps power hydrotherapy zones. | Plan first | View Options |
| Spa heaters | Electric resistance heaters are common in portable spas; capacity, flow and control-pack compatibility must match. | Plan first | View Options |
| Filters and housings | Cartridge filters remove suspended debris and require exact dimensions, thread style and flow compatibility. | Plan first | View Options |
| Control packs and sensors | The control system coordinates pumps, heater, lights, ozone, temperature sensors and safety interlocks. | Plan first | View Options |
| Covers and water care | A fitted insulated cover reduces heat loss, while testing and sanitation protect water quality and equipment. | Plan first | View Options |
What to evaluate before choosing
1. Circulation and jet pumps
Evaluate this category against the actual site, system and safety requirements.
Low-flow circulation pumps support filtration and heating, while higher-flow jet pumps power hydrotherapy zones.
2. Spa heaters
Evaluate this category against the actual site, system and safety requirements.
Electric resistance heaters are common in portable spas; capacity, flow and control-pack compatibility must match.
3. Filters and housings
Evaluate this category against the actual site, system and safety requirements.
Cartridge filters remove suspended debris and require exact dimensions, thread style and flow compatibility.
4. Control packs and sensors
Evaluate this category against the actual site, system and safety requirements.
The control system coordinates pumps, heater, lights, ozone, temperature sensors and safety interlocks.
5. Covers and water care
Evaluate this category against the actual site, system and safety requirements.
A fitted insulated cover reduces heat loss, while testing and sanitation protect water quality and equipment.
What current guidance confirms
How to plan the system correctly
Circulation and jet pumps
Low-flow circulation pumps support filtration and heating, while higher-flow jet pumps power hydrotherapy zones.
Spa heaters
Electric resistance heaters are common in portable spas; capacity, flow and control-pack compatibility must match.
Filters and housings
Cartridge filters remove suspended debris and require exact dimensions, thread style and flow compatibility.
Control packs and sensors
The control system coordinates pumps, heater, lights, ozone, temperature sensors and safety interlocks.
Common planning mistakes
Frequently asked questions
What equipment does a hot tub need to operate?
A typical spa uses one or more pumps, a heater, filters, jets, a control pack, sensors, plumbing and a fitted cover.
What is the difference between a circulation pump and a jet pump?
A circulation pump moves water slowly for filtration and heating, while a jet pump supplies higher flow for hydrotherapy.
Can any spa heater replace an old one?
No. Voltage, wattage, flow tube, sensor arrangement and control-pack compatibility must match.
Why does a spa pump become air locked?
Air can remain trapped after draining or low-water operation. Filling through the filter area and following the priming procedure can help.
How often should spa filters be cleaned?
Rinse and inspect them based on use and the manufacturer schedule, then deep-clean or replace when performance declines.
Does a hot-tub cover reduce energy use?
Yes. A well-fitted insulated cover limits evaporation and heat loss when the spa is not in use.
Can pool chemicals be used in a hot tub?
Only when the product label specifically permits spa use. Hot water and small volume make dosing errors more significant.
Who should service spa electrical equipment?
Use a qualified spa technician or electrician for GFCI, wiring, heater and control-pack work.
Related pool guides
Plan the complete installation before buying
Explore spa and hot tub equipment, including pumps, heaters, filters, jets, controls, covers and water-care systems for portable and in-ground setups. Use qualified professionals for regulated electrical, plumbing, structural, fuel, security or safety-related work.