# Air compressor accessory Proline 66302 — 1/2" thread fitting for pneumatic tools

**URL:** https://aio.lv/en/product--proline-5663023--10786474
**Data updated:** 2026-03-12 10:13 (EET)
**Category:** Air Compressors
**Manufacturer:** Proline
**Manufacturer code:** 5663023
**EAN:** 5903755663023
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-5663023--10786474

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Proline 66302 is an air compressor accessory featuring a 1/2" male thread for connecting pneumatic tools and hoses. It serves as a threaded fitting/adaptor for reliable air flow transfer between compressor outlets and pneumatic equipment. Suitable for repair, workshop and DIY tasks requiring a standard 1/2" threaded connection.

## Long description

Proline quick connector with valve and external 1/2" thread is designed for joining components in pneumatic systems, providing a fast and secure connection between air supply elements. The connector is made from high-quality materials to ensure durability and resistance to high pressure.
Advantages
The Proline quick connector features an integrated valve that prevents air loss when disconnecting, and an external 1/2" thread for straightforward installation. Its robust construction offers long service life and reliable performance in typical workshop and industrial pneumatic applications.
Suitable for
 Connecting hoses and tools in workshop air systems
 Linking compressors to pneumatic equipment
 Temporary or permanent installations in industrial pneumatic lines
Key specifications
 Brand: Proline
 Model / MPN: 66302 / 5663023
 EAN: 5903755663023
 Thread type: external thread, 1/2"
 Feature: built-in valve
How to use
Ensure the air supply is depressurized before installation. Screw the connector onto the corresponding 1/2" female thread until properly seated, then attach the mating quick-fit coupling or hose. After connection, pressurize the system and check for leaks. To disconnect, relieve downstream pressure and unclip or unscrew the mating part; the integrated valve will minimize air escape.
Usage recommendations
Use compatible 1/2" threaded ports and inspect seals periodically. Do not exceed the recommended pressure limits of your pneumatic system components and replace the connector if visible wear or damage appears.

## Specifications

| Feature | Value |
|---|---|
| Connecting thread | 1/2 |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Air compressor accessory Proline 66302 1/2" thread cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 101 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 22.06.2026 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 Proline 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 Proline 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/10786474/64449322_large.webp