# Adapter Rothenberger 170950 W21.8 x 1/4 SAE M – gas fitting adapter

**URL:** https://aio.lv/en/product--rothenberger-170950--11455863
**Data updated:** 2026-02-15 12:37 (EET)
**Category:** Home Goods Accessories
**Manufacturer:** Rothenberger
**Manufacturer code:** 170950
**EAN:** 4004625031667
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 40.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rothenberger-170950--11455863

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.99 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Rothenberger adapter model 170950 converts a W21.8 thread to a 1/4" SAE male connection. Designed for joining equipment with different thread standards, it is suitable for gas and refrigeration service applications where these fittings are required. Compact and easy to install, the adapter provides a reliable mechanical connection for service tools and hoses.

## Long description

The Rothenberger 170950 W21.8 x 1/4 SAE M – gas fitting adapter converts a W21.8 (left-hand) thread to a 1/4" SAE male connection, allowing secure joining of service tools, hoses and gauges that use different thread standards. Designed for gas and refrigeration service applications, this compact adapter provides a straightforward mechanical interface for gas conditioning and maintenance tasks where a W21.8 connection must be adapted to a 1/4" SAE male fitting. The adapter is intended for use with compatible service equipment and conforms to common mechanical practices for gas and refrigeration fitting connections.
Advantages
The adapter delivers a compact and robust mechanical connection between W21.8 and 1/4" SAE male fittings, enabling compatibility across different equipment standards without modifying hoses or tools. Its simple design supports quick installation and removal, reducing downtime during service operations. The adapter is suitable for use in environments where reliable, leak-resistant mechanical fittings are required for gas and refrigeration servicing.
Suitable for
Connecting refrigerant service hoses to equipment with W21.8 threads
Linking gauges or charging lines that use 1/4" SAE male fittings to W21.8 ports
Temporary or permanent mechanical adaptions in gas and refrigeration maintenance
Key specifications
Thread conversion: W21.8 to 1/4" SAE male
Intended application: gas and refrigeration service connections
Construction: compact mechanical adapter suitable for service tools and hoses
Installation: threaded mechanical connection requiring appropriate sealing practice
How to use
Ensure both mating threads are clean and free from debris or damage before installation. Apply appropriate thread sealing or sealing practice recommended for the specific gas or refrigerant system in use. Screw the adapter into the W21.8 female port by hand until seated, then tighten using the correct size wrench to secure the mechanical connection without over-torquing. Attach the 1/4" SAE male fitting of the hose or gauge to the adapter and check the connection for leaks using a suitable leak-detection method before putting the system into service.
Usage recommendations
Verify compatibility of materials and sealing methods with the specific refrigerant or gas being used. Use appropriate personal protective equipment and follow industry safety procedures when connecting or disconnecting pressurised lines. Regularly inspect adapter threads for wear or damage and replace if any deterioration is observed.

## FAQ

### How much does the Adapter Rothenberger 170950 W21.8 x 1/4 SAE M cost, and is it available for purchase?

The price is 49.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 17.07.2026 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. 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 Rothenberger 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 Rothenberger 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/11455863/68663724_large.webp