Cold Plunge Tub Accessories Guide: What You Need & How to Use
Best Buying | By: Adma’s Grill | Update On: June 17
When you’re investing in a cold plunge tub, it’s not just about the tub itself. The right accessories can make or break your entire experience. Whether you’re aiming for better water quality, faster chilling, or more convenient usage, these essentials ensure your Plunge is not only practical but also enjoyable and safe.
Below, we break down the essential cold plunge accessories in 2025 and where to find them across the top-rated tubs on Cold Plunge Picks.
1. Cold Plunge Chillers
If you’re tired of constantly refilling ice, a cold plunge chiller is your ultimate upgrade. These devices keep your water consistently cold, typically between 37°F and 59°F, without the mess of melting ice.
Top Picks with Built-in Chillers:
- The Plunge features a powerful cooling system, set and forget.
- Primal Health XL – Includes a fast-action chiller, ideal for athletes.
- Plunge Pod – Sleek design + integrated chiller.
Want consistent cold without hauling ice? Select a model with integrated chillers or consider adding a compatible external chiller unit.
Chillers: Installation & Use
Maintenance Tip: Clean chiller filters monthly and ensure proper airflow around the unit.
- Plug the chiller into a GFCI-protected outlet, either outdoors or indoors.
- Connect the inlet and outlet hoses between the tub and the chiller.
- Fill the tub with clean water and turn on the chiller.
- Set your target temperature (typically 50–59°F for beginners).
- Allow 3–6 hours for full chilling, depending on volume.
- Run the chiller daily for maintenance, or set it on a smart timer for convenience.
2. Water Sanitizers & Filters
Cold plunge tubs require maintenance to stay clean and safe. Regular use introduces sweat, oils, and bacteria. Sanitizers like chlorine tablets, UV filters, or ozone generators prevent buildup, keeping water crystal-clear.
Key Features to Look For:
- Ozone filtration (automated and chemical-free)
- Replaceable cartridge filters
- Drain-friendly sanitation chemicals
Many tubs, such as the Jugrift Tub and Plunge, feature built-in filtration and ozone systems, making them ideal for daily plungers.
Water Sanitizers & Filters: Installation & Use
Safety Tip: Always sanitize after heavy use or if water appears cloudy.
- For ozone/UV: Install the unit in line with the water flow (refer to the manual).
- For chlorine: use non-stabilized chlorine tablets or drops according to the water volume.
- For filters: attach or replace cartridges in the pump/filter chamber.
- Run ozone or UV for 15–30 minutes daily.
- Check pH and chlorine levels weekly with a pool test kit.
- Replace filters every 1–3 months, depending on usage.
3. Cold Plunge Lids & Covers
A quality lid does two things: it keeps the cold in and the debris out. Whether your tub is indoors or outdoors, a tight-fitting cover helps maintain temperature, reduces evaporation, and blocks out leaves, bugs, or dust.
Best Add-ons:
- Hard-shell insulated covers (retain cold longer)
- UV-resistant lids for outdoor setups
- Locking lids for safety (especially if you have kids or pets)
Compatible Tubs with Lids Included:
- Renu Therapy – Heavy-duty lid included
- Plunge All-In – Ships with magnetic lid
- Edge Tub Elite – Optional soft cover upgrade available
Lids & Covers: Installation & Use
Pro Tip: Use an insulated cover if placing the tub outside in warm climates.
- Align the cover with the tub’s shape (soft or hard shell).
- Secure elastic straps, zippers, or magnetic edges, depending on the model.
- Store cover flat when not in use to prevent warping.
- Keep covered when not plunging to retain cold and keep out debris.
- Use hard-shell covers for added safety when used outdoors.
- Clean weekly with mild soap and water to avoid mildew buildup.
4. Water Circulation Pumps
A pump keeps your water moving, and this helps with both chilling efficiency and sanitation. Some setups utilize built-in pumps to enhance ozone and UV filtration, while others rely on external models.
Benefits of a Circulation Pump:
- Faster and even water-cooling
- Prevents stagnant water
- Supports better filtration
Tubs like the Edge Tub Elite and Plunge Pro XL include internal pumps with optimized flow control.
Pumps: Installation & Use
Maintenance Tip: Never run the pump dry; constantly monitor for leaks or blockages to prevent damage.
- For built-in systems, plug and ensure the pump hoses are connected securely.
- For external pumps: place them near the tub, connect the inlet and outlet, and turn on the power.
- Use flow direction arrows to indicate the correct water path.
- Run for 15–60 minutes per day, depending on volume.
- Ensure the pump stays primed with water to avoid dry running.
- Clean pump filters biweekly to maintain strong flow.
5. Drainage Hoses & Connectors
Emptying your tub manually is time-consuming. A dedicated drain hose system saves you time and effort.
Look for:
- Quick-connect drain valves
- Durable, kink-free hoses
- Garden-hose adapters for easy backyard draining
Pro Tip: Some tubs offer gravity-drain or pump-assisted systems, which are beneficial for permanent outdoor placements.Drainage Hose: Installation & Use
Time-Saver Tip: Use a sump pump if your tub is installed below ground level.
- Locate the built-in drain valve at the bottom or side of the tub.
- Attach the hose to the drain outlet using a threaded or quick-connect fitting.
- Route the hose to a safe drainage area (such as a garden or floor drain).
- Open the valve and let gravity do the work, or use a drain pump for faster flow.
- Rinse the tub interior as it drains to remove residue.
- After emptying, flush the hose with clean water and hang it to dry.
6. Cold Plunge Safety Accessories
Beyond comfort and convenience, safety should be a top priority, especially in colder climates or homes with children.
Consider adding:
- Non-slip steps or mats
- Handrails for safe entry
- Smart timers or shut-off switches
- Temperature control locks
These small additions can make a big difference, especially if you’re new to cold plunging or using your tub frequently.
- Non-slip mats: Place them near the tub entrance to prevent slips and falls.
- Steps or Stools: Ensure stable footing for safe entry and exit.
- Smart timer plugs: Automate chilling or sanitation cycles.
- Temp limiters: Prevent temperatures from going too low (below 37°F).
- Always check the surface around your tub for wetness.
- Use in well-lit areas, especially when plunging early in the morning or late at night.
- Install child locks on outdoor units if kids are nearby.
Final Check
Whether you’re optimizing performance, cleanliness, or user-friendliness, cold plunge accessories make your routine easier, safer, and more enjoyable. From chillers to sanitizers and bright covers, each add-on plays a crucial role in extending the lifespan of your tub and enhancing your daily experience.
Before you decide, explore our Best Cold Plunge Tubs page, where tubs are already pre-installed with accessories, and choose the one that suits your lifestyle, climate, and wellness goals.