# Flexible connection hose kfa² 644-040-38, female 3/8" x female 3/8" for plumbing fittings

**URL:** https://aio.lv/en/product--kfa-644-040-38--11855452
**Data updated:** 2026-03-09 17:31 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** kfa²
**Manufacturer code:** 644-040-38
**EAN:** 5907571640398
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-644-040-38--11855452

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Flexible connection hose kfa² model 644-040-38 with female 3/8" x female 3/8" fittings. Designed for connecting faucets, mixers and plumbing fixtures to supply lines, the hose provides a compact, flexible link between threaded fittings. Suitable for indoor water supply applications where a short flexible connection is required.

## Long description

The kfa² flexible connection hose model 644-040-38 with female 3/8" x female 3/8" fittings is a short, flexible water supply hose designed for indoor plumbing connections. It provides a compact link between threaded fittings on faucets, mixers and other sanitary fixtures, allowing for slight misalignment and easier installation in tight spaces.
Advantages
This flexible hose offers a compact construction that simplifies connections in confined areas and reduces the need for precise alignment of rigid piping. Its flexibility allows for vibration absorption and slight movement without transmitting stress to fittings. The female 3/8" x female 3/8" ends make it compatible with common threaded plumbing outlets used on mixers and valves. The hose is intended for indoor cold and hot water supply lines and facilitates straightforward replacement or maintenance of fixtures.
Suitable for
Connecting bathroom and kitchen faucets to supply lines
Linking mixers and valves to threaded outlets in tight spaces
Temporary or permanent flexible connections where short length is required
Key specifications
Connection type: female 3/8" x female 3/8" threaded ends
Application: indoor potable water supply for faucets, mixers and sanitary fixtures
Design: short, flexible hose to accommodate misalignment and reduce stress on fittings
Material characteristics: flexible inner hose with protective outer covering suitable for plumbing use
Typical use temperature: suitable for cold and hot water within standard indoor plumbing temperature ranges
How to use
Shut off the water supply before disconnecting or connecting the hose. Ensure mating threads on the faucet, mixer or valve and the supply connection are clean and undamaged. Hand-tighten the female 3/8" ends onto the corresponding male threaded outlets, then use an appropriate wrench to secure the connection without over-tightening. After installation, open the water supply and inspect connections for leaks; tighten slightly if necessary. Replace the hose if signs of wear, leakage or damage appear.
Usage recommendations
Use this kfa² flexible connection hose for indoor potable water systems only. Avoid exposure to direct sunlight, freezing conditions or aggressive chemicals. Periodically check connections for tightness and integrity, and replace the hose if you detect leaks, bulging, kinks or significant outer-covering damage.

## FAQ

### How much does the Flexible hose kfa² 644-040-38 3/8"x3/8" cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All kfa² products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized kfa² service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11855452/67253770_large.webp