# Flexible connector hose kfa² 1/2" female — 3/8" female (model 645-040-38)

**URL:** https://aio.lv/en/product--kfa-645-040-38--11855506
**Data updated:** 2026-03-09 17:31 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** kfa²
**Manufacturer code:** 645-040-38
**EAN:** 5907571640466
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-645-040-38--11855506

## 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 connector hose by kfa², model 645-040-38, with 1/2" female thread on one end and 3/8" female thread on the other. Designed for water installations and sanitary fittings, it provides a flexible link between fixtures and supply lines. Suitable for connecting taps, mixers or valves where differing thread sizes require an adapter hose.

## Long description

The kfa² flexible connector hose 1/2" female — 3/8" female (model 645-040-38) is a braided plumbing hose designed to link sanitary fixtures with supply lines that have differing thread sizes. Constructed for routine water installations, this hose allows a secure, flexible connection between taps, mixers or valves and the water supply, accommodating a 1/2" female fitting at one end and a 3/8" female fitting at the other.
Advantages
This flexible connector hose provides reliable sealing and mechanical flexibility in confined installation spaces. The braided outer layer resists kinking and abrasion while allowing the hose to bend where rigid pipes cannot. It is intended for potable water systems and ordinary household plumbing, offering straightforward installation without the need to rework existing fittings. The difference in thread sizes eliminates the need for additional adapters when connecting incompatible fixtures.
Suitable for
Connecting bathroom or kitchen taps to supply lines with mismatched thread sizes
Linking mixers and valves to concealed plumbing
Repair or replacement of worn flexible hoses in residential water systems
Key specifications
Connection types: 1/2" female at one end and 3/8" female at the other
Application: cold and hot water supply in domestic sanitary installations
Construction: flexible hose with braided outer covering for durability
Compatibility: designed for standard tap and mixer fittings with corresponding threads
Typical operating environment: indoor plumbing installations
How to use
Before installation, shut off the water supply and relieve pressure by opening a nearby faucet. Verify that the hose connections match the thread types on the fixture and the supply pipe. Hand-start each thread to avoid cross-threading, then tighten with an appropriate wrench until a snug, leak-free seal is achieved; avoid over-tightening. After fitting, restore water flow and check all joints for leaks. Replace the hose if you detect damage to the braid or persistent leaks.
Usage recommendations
Inspect the hose periodically for wear or corrosion, especially at the fittings. Use the hose only within normal household water pressure ranges and avoid exposure to direct sunlight or chemicals that could degrade materials. For installations requiring additional protection or higher pressure ratings, choose hoses specified for those conditions.

## FAQ

### How much does the Flexible connector hose kfa² 645-040-38 cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 124 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/11855506/67253819_large.webp