# EK Water Blocks EK-HDC Fitting 16mm G1/4

**URL:** https://aio.lv/en/product--ek-water-blocks-3831109847428--1926427
**Data updated:** 2026-03-07 11:02 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** ek water blocks
**Manufacturer code:** 3831109847428
**EAN:** 3831109847428
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ek-water-blocks-3831109847428--1926427

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

EK Water Blocks EK-HDC Fitting 16mm G1/4. Material: Aluminium, Brass, Product colour: Purple. Width: 23.8 mm, Depth: 23.8 mm, Height: 14.5 mm

## Long description

EK Water Blocks EK-HDC Fitting 16mm G1/4 is a solid-tube compression fitting engineered for use with hard tubing such as acrylic, copper, stainless steel and other compatible rigid tubes. The fitting combines a nickel-plated brass barb with an anodized aluminium compression ring and integrated O-rings to provide a reliable mechanical hold and fluid seal for 16 mm outer diameter hard tubes. Its compact dimensions (23.8 mm × 23.8 mm × 14.5 mm) and G1/4 threaded connection make it suitable for installation in tight spaces on custom liquid-cooling loops.
Advantages
This compression fitting secures solid tubing more effectively than a simple adapter by compressing a rubber gasket beneath the ring, reducing the risk of tube pullout. The brass barb offers corrosion resistance and precise CNC-machined tolerances while the anodized aluminium ring reduces weight and provides visual distinction. Integrated O-rings ensure a watertight seal without additional sealants. The design is compatible with common angled adapters for flexible routing options.
Suitable for
 Custom PC water-cooling loops using 16 mm OD hard tubing
 Installations requiring secure mechanical retention of rigid tubes
 Systems where compact G1/4 fittings are needed for tight layouts
 Pairs with EK-AF series angled adapters for directional changes
Key specifications
 Compatible tube outer diameter: 16 mm (hard tubing)
 Thread type: G1/4
 Main materials: nickel-plated brass barb, anodized aluminium compression ring, rubber O-rings
 Finish / colour: purple anodized ring with nickel-plated barb
 External dimensions: approx. 23.8 mm (width) × 23.8 mm (depth) × 14.5 mm (height)
 Designed for solid/rigid tubing such as acrylic, copper or stainless steel
How to use
Slide the compression ring and O-ring assembly onto the end of the prepared 16 mm hard tube, then insert the tube onto the barb until it seats fully. Thread the fitting into the component or adapter with G1/4 port and tighten to a secure hand-fit; final tightening and compression of the gasket is achieved by turning the compression ring. Best practice is to use a 9 mm Allen key for controlled tightening of the ring to compress the rubber gasket evenly and avoid over-torquing. Verify sealing by performing a leak test at low pressure before restoring full system operation.
Usage recommendations
Ensure tube ends are square-cut and free of burrs before assembly. Use compatible hard tubing with a true 16 mm outer diameter and confirm O-ring positioning. When combining with angled adapters, verify thread engagement and avoid excessive bending forces on rigid tubes. Perform a controlled leak test after installation.

## Specifications

### Design

| Feature | Value |
|---|---|
| Product colour | Purple |
| Material | Aluminium, Brass |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 14.5 mm |
| Width | 23.8 mm |
| Depth | 23.8 mm |

## FAQ

### How much does the EK Water Blocks EK-HDC Fitting 16mm G1/4 3831109847428 cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 03.08.2026 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 ek water blocks 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 ek water blocks 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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