Sourcing Guide · Oct 20, 2026

How to Source Cold Plunge Tubs from China: Materials, Sizes, MOQ and Packing

Most inflatable cold plunge tubs sold online are made in China and sold under many brands, so the real choice is the construction, not the label. Decide between three builds first: foldable portable tubs (3.5–7 kg), drop-stitch inflatable tubs with 8–10 cm walls, and upright barrels. Then fix wall thickness, accessories and packing size in your RFQ so every supplier quotes the same product.

Which cold plunge construction should you sell?

Buyers in plunge communities say the same thing again and again: inflatable tubs are the easy way to start, and many brands sell near-identical tubs. That is good news for a new brand, because your product decisions matter more than who you buy from.

• Foldable portable tubs: multi-layer fabric and PVC wall with foam padding, 3.5–4.2 kg, four per carton. Entry price and the smallest freight volume; best for e-commerce entry listings.
• Drop-stitch inflatable tubs: 8–10 cm air walls that stand rigid, 130–180 cm long for full-body plunges, around 17.5–20.7 kg packed. The mid and premium tier.
• Upright barrels: Ø90–100 cm with 5, 8 or 10 cm drop-stitch walls; small footprint and shoulder-deep water seated.
• Two-person pools: 200 × 200 × 70 cm for gyms and studios.

From the UNIFUN 2027 catalog.

What should be in your RFQ?

Suppliers can only quote like-for-like if you specify the same things. List these in every request:

1. Construction and wall: portable multi-layer, or drop-stitch wall thickness (5 / 8 / 10 cm).
2. Inside size (length × width × height, or diameter × height).
3. Accessory kit: cover, inflatable ring, pump, carry bag, repair kit; chiller fittings if you need them.
4. Branding: logo position on tub, cover and bag; carton print.
5. Packing: inner box size, gross weight, pieces per outer carton.
6. Target market and quantity per model.

How packing size changes your landed cost

Freight is often a bigger share of landed cost than the tub itself, so compare packing data, not only unit price. Our portable tubs pack into 66 × 26 × 16 cm inner boxes, four per 68 × 34 × 54 cm outer carton; a drop-stitch tub of 130–160 cm packs into a 71 × 39 × 38 cm carton at about 18 kg. These figures are listed on every cold plunge product page, so you can work out cartons per container before you ask for a price.

Can you add a chiller?

Plunge owners who want water colder than ice alone can manage often add a chiller. Our tubs can be connected to a chiller; specify it at RFQ stage so the right fittings are included in the order.

Quality checks before shipment

• Inflate drop-stitch tubs and check them for leaks before packing; confirm the test method and hold time for the model you order.
• Check seams, valves and drain plugs on a random sample of every order.
• Ask for container loading photos.
• Ask for the test report that matches your market and model.

Inspection items are confirmed by model and order specification; see our quality process.

FAQ

Are most cold plunge tubs made in China?

Many inflatable and portable cold plunge tubs on the market are produced in China and sold under different brands. The construction (wall type and thickness, accessories) is what separates them.

What is the MOQ for private-label cold plunge tubs?

MOQ depends on the model and how much is customized (logo, cover, packaging). Send model numbers and quantities and it is confirmed in the quotation.

Can I get custom sizes?

Drop-stitch tubs can be produced in sizes outside the standard range; tell us the inside dimensions you need.

Written by the UNIFUN Outdoor product team. Specifications are taken from the UNIFUN catalog; ask us for the data sheet of any model.