# Flexible connection hose kfa² 3/8" x 3/8" (model 644-020-38) for plumbing fittings

**URL:** https://aio.lv/en/product--kfa-644-020-38--11199184
**Data updated:** 2026-03-07 19:51 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** kfa²
**Manufacturer code:** 644-020-38
**EAN:** 5907571640374
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-644-020-38--11199184

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Flexible connection hose kfa² model 644-020-38 with 3/8" x 3/8" female threads is designed for connecting plumbing fittings such as faucets, valves and fixtures. It provides a flexible water supply link between pipes and devices, facilitating installation in confined spaces and compensating for minor misalignment. Suitable for domestic and commercial sanitary systems.

## Long description

Flexible connection hose kfa² 3/8" x 3/8" (model 644-020-38) is a flexible water supply line designed for connecting plumbing fittings such as faucets, shut-off valves and sanitary fixtures. The hose with female 3/8" connections provides a compact, bendable link between supply pipes and devices, facilitating installation in confined spaces and accommodating small misalignments. It is suitable for domestic and light commercial sanitary systems where a short, flexible connection is required.
Advantages
The kfa² flexible hose offers ease of installation thanks to its pliable body and standardized female 3/8" fittings, reducing the need for exact pipe alignment. Its construction provides a reliable water connection that resists kinking under normal installation conditions and enables quick replacement or maintenance of fixtures without major plumbing modifications. The compact length and flexible design make it practical for use behind sinks, toilets and in cabinet enclosures.
Suitable for
 Connecting faucets and basin mixers to water supply valves
 Linking shut-off valves to water-using fixtures in kitchens and bathrooms
 Replacement of rigid piping in confined or hard-to-reach spaces
 Temporary or permanent connections in light commercial sanitary installations
Key specifications
 Connection type: female to female flexible hose with 3/8" threaded ends
 Material: flexible braided hose construction suitable for potable water supply
 Application: cold and hot water supply in sanitary installations
 Design: short, bendable hose to accommodate minor misalignment and space constraints
How to use
Shut off the water supply before installation. Hand-start the thread on both ends to avoid cross-threading, then tighten with an appropriate wrench until secure; avoid excessive torque to prevent damage to fittings. Route the hose without sharp bends or kinks and ensure it is not stretched or compressed. After installation, open the water supply and check for leaks at both connections; retighten slightly if necessary.
Usage recommendations
Use the kfa² flexible connection hose in installations where accessibility is limited and alignment between fittings is not exact. Periodically inspect connections for signs of wear or leakage and replace the hose if any damage or persistent leaks are detected. Select the appropriate hose length and verify compatibility with existing 3/8" female plumbing fittings before installation.

## FAQ

### How much does the kfa² flexible hose 3/8" x 3/8" 644-020-38 cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 13.07.2026 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/11199184/61982546_large.webp