# Alkotest KN4525 PP elbow connector 45° DN25 (fi25) for drainage and piping

**URL:** https://aio.lv/en/product--alkotest-kn4525--11822592
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** Alkotest
**Manufacturer code:** KN4525
**EAN:** 5902814623084
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alkotest-kn4525--11822592

## 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

Alkotest KN4525 is a polypropylene (PP) 45° elbow connector with a nominal diameter DN25 (fi25). Designed for drainage and piping systems, this elbow provides a compact directional change in plastic plumbing installations. Suitable for waste, sewage or ventilation runs where a 45-degree bend is required and compatible with DN25 PP piping.

## Long description

Alkotest KN4525 is a polypropylene (PP) 45° elbow connector with a nominal diameter DN25 (fi25) designed for drainage and piping systems. The fitting provides a compact and smooth directional change for plastic plumbing installations and is suitable for use in waste, sewage, and ventilation runs where a 45-degree bend is required. Manufactured from PP material, the connector is compatible with DN25 PP piping and intended for non-pressurized gravity drainage and ventilation applications.
Advantages
The Alkotest KN4525 offers corrosion resistance and chemical stability typical of polypropylene, ensuring long service life in drainage conditions. Its 45° geometry reduces turbulence and clogging risk compared with sharper bends, supporting reliable flow in sewage and waste lines. The connector is lightweight and easy to handle, allowing straightforward alignment during installation and reducing labour time for routing pipework in confined spaces.
Suitable for
 Residential and commercial waste water drainage systems
 Sewage and soil pipe assemblies with DN25 PP pipes
 Ventilation runs and non-pressurized exhaust ducts
 Retrofit or repair work where a gentle 45° directional change is needed
Key specifications
 Material: polypropylene (PP)
 Angle: 45 degrees
 Nominal diameter: DN25 (fi25)
 Application type: drainage, sewage, ventilation (non-pressurized)
 Connection type: socket/solvent or push-fit compatible with DN25 PP piping (depending on system)
 Color: product typical for PP plumbing fittings
How to use
Before installation, verify that mating DN25 pipes are clean and free of debris. Align the elbow to achieve the required 45° change in direction and ensure correct insertion depth according to the piping system's instructions. For solvent-weld or adhesive systems, apply the recommended primer and adhesive evenly to both pipe and fitting surfaces and hold the joint until set. For push-fit systems, insert the pipe fully into the socket and confirm an audible or tactile engagement. After assembly, inspect joints visually and, where applicable, perform a leak test with water to confirm correct sealing.
Usage recommendations
Use the Alkotest KN4525 in gravity drainage and ventilation circuits only. Avoid exposure to sustained high temperatures above typical polypropylene limits or to aggressive solvents not compatible with PP. During installation, follow the pipe system manufacturer's guidelines for joint preparation and curing times to ensure reliable, durable connections.

## FAQ

### How much does the PP 45° elbow Alkotest KN4525 DN25 cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 301 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 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/11822592/67224669_large.webp