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header-product Barrow compression fitting THKN-3/8-B03 b, 13/10 mm (inner/outer), black
7.99 €

Barrow compression fitting THKN-3/8-B03 b, 13/10 mm (inner/outer), black

Barrow THKN-3/8-B03 b compression fitting 13/10 mm Photo 1
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Barrow compression fitting THKN-3/8-B03 b, 13/10 mm (inner/outer), black

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Barrow compression fitting THKN-3/8-B03 b, 13/10 mm (inner/outer), black

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Short description

Barrow compression fitting THKN-3/8-B03 b is a black connector for liquid-cooling tubing specified for 13/10 mm (outer/inner) tube sizes. It provides a push-on compression connection for secure sealing between tubing and components, suitable for PC water-cooling loops and custom cooling assemblies where a 13 mm outer / 10 mm inner bore tube is used.
Available for order: 50 pcs.
Warranty: 2 Years
SKU: 5795716
Manufacturer: Barrow
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
16.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
21.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.03 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
21.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Product information

Description

Barrow compression fitting THKN-3/8-B03 b is a black compression connector designed for 13/10 mm (outer/inner) soft tubing used in PC liquid-cooling loops and custom cooling assemblies. The fitting creates a push-on compression seal between tubing and cooling components, providing a compact, low-profile connection for runs where 13 mm outer diameter and 10 mm inner bore tubing is specified.

Advantages

The fitting offers reliable mechanical compression sealing without the need for additional clamps or adhesives, reducing the risk of leaks when installed correctly. Its black finish provides visual consistency in systems with dark tubing or components and helps hide wear marks. The push-on design simplifies installation and removal while maintaining a secure hold under standard operating pressures for typical PC liquid-cooling setups.

Suitable for

  • PC water-cooling loops using 13 mm outer / 10 mm inner soft tubing
  • Custom liquid-cooling assemblies and tubing runs in desktop systems
  • Connections between tubing and radiators, pumps, reservoirs, and water blocks with matching ports
  • DIY repairs and upgrades where a compact compression fitting is required

Key specifications

  • Finish: black
  • Tube compatibility: 13 mm outer diameter, 10 mm inner diameter
  • Connection type: push-on compression
  • Application: liquid-cooling tubing connector for PC systems
  • Form factor: compact, low-profile fitting suitable for tight routing

How to use

Ensure the tubing end is cut square and free of debris before installation. Slide the tubing over the fitting until the compression seat is reached and a snug feel confirms engagement. For best results, push firmly until the tubing abuts the end stop; avoid twisting the tubing excessively during insertion. Verify the connection by visually confirming the tubing has fully seated and by testing the loop under low pressure before powering the system.

Usage recommendations

Use only with soft tubing of the stated dimensions. Inspect fittings and tubing periodically for signs of wear or softening, and perform a pressure or leak test after any maintenance or reconfiguration. Do not exceed the typical operating temperatures and pressures recommended for PC liquid-cooling components.

Description

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Customer reviews

Customer questions

FAQ

How much does the Barrow THKN-3/8-B03 b compression fitting 13/10 mm cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 16.07.2026 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 Barrow 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 Barrow 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.