# External Reduction Adapter Alkotest R2520, size 25/20 mm, model R2520

**URL:** https://aio.lv/en/product--alkotest-r2520--11822684
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Alkotest
**Manufacturer code:** R2520
**EAN:** 5902814620977
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 2.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alkotest-r2520--11822684

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Alkotest R2520 is an external reduction adapter (PP.RED-25/20) designed to connect or downsize fittings from 25 mm to 20 mm. Manufactured by Alkotest, the R2520 adapter provides a mechanical, size-reducing coupling for fluid or tubing applications where a reliable 25/20 mm transition is required. Suitable for plumbing, instrumentation, or equipment maintenance tasks that need a compact, durable connector.

## Long description

Alkotest R2520 is an external reduction adapter designed to join or downsize cylindrical fittings from 25 mm to 20 mm. Made from polypropylene, this PP.RED-25/20 style adapter provides a simple mechanical transition between different diameters and is intended for applications where a compact, corrosion-resistant connector is required. The adapter is suitable for installation on pipes, tubing or compatible fittings in systems that carry liquids or non-aggressive gases and where a reliable 25→20 mm reduction is needed.
Advantages
The external reduction adapter offers a compact footprint and straightforward push-fit or slip-fit installation depending on system design. Constructed from polypropylene, the adapter exhibits chemical resistance to many common fluids, low weight for easier handling, and dimensional stability over typical temperature ranges for non-pressurized or low-pressure systems. Its smooth bore and precise diameter transition minimize flow disturbances at the connection point.
Suitable for
Plumbing repairs and small bore pipe connections
Instrumentation and laboratory tubing transitions
Equipment maintenance and retrofitting of fluid lines
Low-pressure liquid distribution and drainage systems
Key specifications
Material: polypropylene (PP)
Type: external reduction adapter
Connection sizes: 25 mm to 20 mm
Design: straight, single-step diameter reduction
Typical use: mechanical coupling for tubes and pipes
How to use
Ensure both mating pipe ends are clean, free of debris and cut squarely before assembly. Insert the 25 mm pipe end onto the larger side of the adapter and the 20 mm pipe onto the smaller side, applying a steady push until fully seated. For systems that require sealed joints, add appropriate sealing methods such as adhesive, heat fusion (if compatible), or external clamps according to system requirements and the material compatibility of polypropylene. Verify alignment and secure fittings to prevent movement when the system is pressurized or in use.
Usage recommendations
Use the adapter in applications within the material's chemical and temperature limits; avoid exposure to strong oxidizers or solvents that may degrade polypropylene. For pressurized systems, confirm pressure ratings and consider additional fastening or sealing methods. Inspect connections periodically for signs of wear, cracking, or leakage and replace the adapter if any damage is observed.

## FAQ

### How much does the Alkotest R2520 external reduction 25/20 mm cost, and is it available for purchase?

The price is 2.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 591 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 15.07.2026 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 Alkotest 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 Alkotest 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/11822684/67224739_large.webp