# Flexible connection hose kfa² GW/GW 3/8" x 3/8" (model 644-030-38) for plumbing connections

**URL:** https://aio.lv/en/product--kfa-644-030-38--11855426
**Data updated:** 2026-03-09 17:31 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** kfa²
**Manufacturer code:** 644-030-38
**EAN:** 5907571640381
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-644-030-38--11855426

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Flexible connection hose by kfa², model 644-030-38, with GW (female) 3/8" x 3/8" fittings for standard plumbing connections. Designed for connecting taps, valves or fixtures to water supply lines, it provides leak-resistant flexible linkage and easy installation in tight spaces. Suitable for domestic and commercial sanitary systems where a 3/8" connection is required.

## Long description

Flexible connection hose kfa² GW/GW 3/8" x 3/8" (model 644-030-38) is a pliable water supply hose intended for use in residential and commercial sanitary installations where a 3/8" female-to-female connection is required. The hose provides a leak-resistant flexible link between fixtures such as taps, valves or appliances and the fixed water supply lines. Its construction allows routing in confined spaces and reduces stress on rigid piping during installation and operation.
Advantages
This kfa² flexible hose offers ease of installation thanks to its compact, flexible body and standard GW/GW 3/8" threaded fittings. The design minimizes the risk of leaks by providing secure connections at both ends and accommodates small positional adjustments without the need to modify existing plumbing. The hose is suitable for frequent handling during maintenance and replacement because of its durable materials and corrosion-resistant fittings.
Suitable for
Connecting household taps and faucets to water supply lines
Linking valves, mixers and small sanitary appliances
Use in tight installation spaces behind sinks, basins and cabinets
Temporary or permanent connections in domestic and light commercial plumbing
Key specifications
Connection type: female-to-female (GW/GW)
Connection size: 3/8" x 3/8"
Application: cold and hot water supply in sanitary systems
Design: flexible hose for easy routing in confined spaces
Fittings: corrosion-resistant threaded fittings for secure sealing
How to use
Shut off the water supply before fitting the hose. Ensure connection threads on both the fixture and supply outlet are clean and free of debris. Hand-start the 3/8" fittings to avoid cross-threading, then tighten to the required snugness using an appropriate wrench; avoid overtightening. After installation, restore the water supply and check all joints for leaks. Replace the hose if signs of wear, damage or persistent leakage appear.
Usage recommendations
Use this flexible connection hose only for potable water supply lines and within the temperature and pressure limits of the installation. Avoid kinking the hose and do not expose it to direct sunlight or aggressive chemicals. For long-term reliability, inspect connections periodically and replace the hose during major plumbing renovations or when signs of deterioration are observed.

## FAQ

### How much does the kfa² flexible hose 3/8" x 3/8" 644-030-38 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 — 143 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 06.07.2026 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/11855426/67253747_large.webp