Washing-machine ultrafine bubble generator, adapter type: a metal fitting with a thread at the top for the inlet hose and a knurled nut at the bottom that goes onto the washing machine's water inlet
Washing-machine adapter: the inlet hose goes on the thread at the top; the knurled nut at the bottom goes onto the machine's water inlet.
Key facts
ItemDetail
TypesWashing-machine adapter type; faucet type
StructureJapanese utility model registration No. 3246521 (non-submerged ultrafine bubble generating device); the certificate names ZHONGHE as the right holder
Washing-machine adapterFits between the machine's water inlet and the inlet hose; G3/4; about 36 mm high, about 32 mm wide, about 87 g; brass or stainless steel body
Faucet typeFits on the end of the faucet; about 24 mm wide, about 70 mm high; chrome-plated brass body; basin-faucet arm and kitchen-faucet adapters available
Model codesNone: not part of the 96-model online catalog
Bubble measurementMeasurement records exist (one for each type) and are provided with their measurement conditions during discussions.
Effect claimsNone
MOQ and priceConfirmed per project

Washing-machine adapter type

An adapter that goes onto the washing machine's own water inlet; the inlet hose is then refitted on top of it.

ItemDetail
Where it fitsBetween the washing machine's water inlet and the inlet hose
ConnectionG3/4
Size and weightAbout 36 mm high, about 32 mm wide; about 87 g
Body materialBrass or stainless steel, depending on the specification
GasketSupplied; it goes in when the adapter is fitted to the inlet
InstallationThree steps, no tools: (1) take the inlet hose off the washing machine's water inlet; (2) fit the adapter onto the machine's water inlet with the gasket in place; (3) refit the inlet hose onto the top of the adapter.
FitWhether it fits depends on each machine's water inlet and inlet hose, so confirm by model. On older machines a worn inlet may leak, or the adapter may not fit.

Faucet type

A generator that fits on the end of the faucet. Like the washing-machine adapter, it uses the structure of utility model No. 3246521.

Faucet-type ultrafine bubble generator, a chrome-plated cylinder with dimension lines marking about 24 mm wide and about 70 mm high
Faucet type, about 24 mm wide and about 70 mm high (dimension lines on the photo).
Faucet-type generator fitted to the basin-faucet arm adapter
On the basin-faucet arm adapter (about 100 × 47 × 60 mm).
Faucet-type generator fitted to the kitchen-faucet adapter
On the kitchen-faucet adapter.
ItemDetail
SizeAbout 24 mm wide, about 70 mm high
Material and finishBrass body, chrome-plated
Supplied withA rubber ring and an adapter
FittingMale-thread faucets (about 22 mm) take it directly; female-thread faucets (about 24 mm) take it with the supplied adapter. Check the thread at the end of the target faucet.
Matching adaptersA basin-faucet arm adapter (about 100 × 47 × 60 mm) and a kitchen-faucet adapter

The white water, and the bubbles you cannot see

ISO 20480-1 calls bubbles under 100 µm across fine bubbles: those from 1 µm up to 100 µm are microbubbles, and those under 1 µm are ultrafine bubbles, which retail copy often calls nano bubbles.

Water from a ZHONGHE bubble generator caught in a clear glass; the water looks milky white
Water from a ZHONGHE generator, caught in a glass. The white look comes mainly from light scattered by micro-bubbles; ultrafine bubbles are invisible to the eye, so whiteness does not show how many ultrafine bubbles there are.
Demo of ZHONGHE's ultrafine bubble generator: the water in the beaker turns white. The white look comes mainly from light scattered by micro-bubbles; it is not a measurement, and no bubble count, size or effect is claimed.

Measurement records exist (one for each type) and are provided with their measurement conditions during discussions. Bubble counts and sizes change with water pressure, water temperature, water quality and the measuring method, so no figure is published or guaranteed; evaluate samples against your own standard.

If a bubble count is printed on retail packaging, measure it on the actual product and print the measuring conditions next to it. In Japan, the Fine Bubble Industries Association guideline asks for the number concentration per mL, the mean diameter and the measuring conditions together.

The structure: Japanese utility model No. 3246521

Both types use the structure of Japanese utility model registration No. 3246521, "non-submerged ultrafine bubble generating device", registered on 19 April 2024; the certificate names ZHONGHE as the right holder. The registration record and the original certificate are listed under document records.

A utility model certificate is a registration record, not a product performance test, and its current rights status is checked per project. Internal shapes and dimensions are not published. How ZHONGHE designs bubble-generating structures is described under bubble development.

What ZHONGHE does not claim

ZHONGHE makes no cleaning, deodorizing, laundry-result or water-feel claims for these generators; any claim on the buyer's packaging rests on the buyer's own evaluation and evidence.

The generators are described by what they are and how they fit: type, connection, size, material and installation. No bubble count, bubble size or effect is stated for them on this site.

OEM/ODM route

ItemDetail
ProductsWashing-machine adapter type; faucet type, with the basin-faucet arm adapter and the kitchen-faucet adapter
Brand and packagingLogo and packaging options are confirmed per project
Material choiceWashing-machine adapter body in brass or stainless steel, chosen by specification; the faucet type has a chrome-plated brass body
MOQ and priceMOQ and pricing are confirmed per project, based on the specification and quantity. No retail or single-unit orders.
Design changesChanges to the fitting or the appearance are reviewed together with the internal structure; see design and manufacturing
SamplesSample terms follow the site's commercial terms and are confirmed per project
How to inquireThere is no model code, so the RFQ list cannot hold these products. Send a normal inquiry: the inquiry button on this page pre-selects the product category