# ARCO COMBI 3/8" x 1/2" Adapter for Angle Valves

**URL:** https://aio.lv/en/product--arco-combi88u--12506840
**Data updated:** 2026-06-10 09:36 (EEST)
**Category:** Other goods
**Manufacturer:** ARCO
**Manufacturer code:** COMBI88U
**EAN:** 8428519067963
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--arco-combi88u--12506840

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.06.2026 | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

The ARCO COMBI adapter is a high-quality plumbing component designed for connecting 3/8" and 1/2" fittings. This durable adapter ensures a secure and leak-proof connection in water supply systems, specifically compatible with the ARCO COMBI series angle valves. It is an essential part for professional plumbing installations, providing reliable performance and ease of assembly in residential and commercial piping networks.

## Long description

The ARCO COMBI 3/8" x 1/2" adapter is a precision-engineered plumbing component designed to facilitate seamless connections between different pipe sizes in water supply systems. Crafted from high-quality brass, this adapter provides the durability and corrosion resistance required for long-term reliability in both residential and commercial piping networks. It is specifically designed to integrate with the ARCO COMBI series of angle valves, ensuring a secure, leak-proof interface that meets professional installation standards.
Advantages
This adapter offers exceptional structural integrity due to its solid brass construction, which prevents deformation and ensures a tight seal under standard water pressure. Its design simplifies the installation process by allowing for quick and efficient transitions between 3/8-inch and 1/2-inch connections. The precision-machined threads ensure compatibility and ease of assembly, reducing the time and effort required for plumbing maintenance or new system setups.
Suitable for
Connecting 3/8-inch and 1/2-inch plumbing fittings
Integrating with ARCO COMBI series angle valves
Residential water supply installations
Commercial piping network maintenance
This adapter may not be suitable for high-pressure industrial applications that exceed standard residential or commercial water supply specifications. It is also not intended for use with gas lines or chemical transport systems where specialized materials or sealing requirements differ from standard water plumbing components.
Key specifications
Material: Brass
Connection sizes: 3/8 inch to 1/2 inch
Thread type: 1/2 inch outer thread
Compatibility: ARCO COMBI series angle valves
To use the adapter, ensure that the plumbing system is depressurized and the water supply is shut off. Clean the threads of the existing angle valve and the pipe fitting to remove any debris. Apply appropriate thread sealant or plumbing tape to the threads if required by local plumbing codes. Screw the adapter onto the valve and tighten it using a suitable wrench, ensuring it is firmly seated without over-tightening, which could damage the brass threads.
What to consider before purchase
Verify the thread sizes of your existing pipes and valves
Ensure compatibility with the specific ARCO COMBI valve model
Check local plumbing regulations regarding material requirements
Confirm the need for additional thread sealants or gaskets
For optimal performance and to prevent potential leaks, always inspect the condition of the existing valve threads before installation. It is recommended to use a calibrated wrench to avoid excessive force during tightening, as this preserves the integrity of the brass material.

## FAQ

### How much does the ARCO COMBI 3/8" x 1/2" Adapter cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 640 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 19.06.2026 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 ARCO 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 ARCO 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/12506840/68848520_large.webp