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header-product Flow indicator EKWB 3831109829721 — black/transparent, 1/4" connecting thread
77.49 €

Flow indicator EKWB 3831109829721 — black/transparent, 1/4" connecting thread

Flow indicator EKWB 3831109829721 Photo 1
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Flow indicator EKWB 3831109829721 Photo 5
Flow indicator EKWB 3831109829721 Photo 1
Flow indicator EKWB 3831109829721 Photo 2
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Flow indicator EKWB 3831109829721 Photo 4
Flow indicator EKWB 3831109829721 Photo 5
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Flow indicator EKWB 3831109829721 — black/transparent, 1/4" connecting thread

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Short description

EKWB flow indicator model 3831109829721 is an accessory for liquid cooling loops, featuring a black and transparent body and a 1/4" connecting thread. It visually indicates coolant flow within a PC cooling system, helping to verify pump operation and detect blockages or air pockets. Suitable for custom water-cooling setups and maintenance diagnostics.
Available for order: 22 pcs.
Warranty: 2 Years
SKU: 4092144
Manufacturer: EKWB
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
20.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
23.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.18 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
23.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 25.83 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.15 euros per month
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Product information

Description

EKWB Flow Indicator 3831109829721 — black/transparent, 1/4" connecting thread is a compact visual monitoring accessory for custom liquid cooling loops. Designed for integration into PC cooling systems, the device shows coolant movement through a transparent acrylic chamber with an anodized black aluminium cover. The flow indicator helps confirm pump operation, detect blockages or trapped air and visually communicates loop status while matching the aesthetic of GPU water cooling components. It uses a 1/4" threaded connection and a top-to-bottom flow pattern; inlet and outlet ports are clearly labeled for correct installation.

Advantages

The flow indicator provides a clear visual cue of coolant circulation using a low-profile impeller with sloped wings and a closed centre to reduce air entrapment. Its anodized aluminium cover is colour-matched to common GPU water block backplates, offering uniform lighting across the housing by hiding LED hotspots. Two addressable LEDs inside the housing support D-RGB synchronization with major motherboard manufacturers. The unit is CNC-machined from cast acrylic for clarity and durability and features standard G1/4" threaded ports for compatibility with existing loop fittings.

Suitable for

  • Custom PC liquid cooling loops where visual flow confirmation is required
  • GPU-mounted cooling setups seeking aesthetic continuity with GPU backplates
  • Troubleshooting and maintenance to detect pump failure, blockages or air pockets
  • Systems using addressable D-RGB lighting for synchronized illumination

Key specifications

  • Type: Flow indicator for liquid cooling loops
  • Body materials: CNC-machined cast acrylic housing and anodized aluminium cover
  • Colour: Black anodized cover with transparent viewing chamber
  • Threads: G1/4" (1/4" standard threaded connections)
  • Flow pattern: Top-to-bottom orientation; ports are labeled for inlet and outlet
  • Impeller design: Closed centre with sloped wings to minimise air trapping
  • Lighting: Two addressable D-RGB LEDs; compatible with major motherboard RGB sync standards (3-pin, +5V alignment required)

How to use

Install the flow indicator inline in your loop using the G1/4" threaded ports, observing the labeled inlet and outlet to maintain the top-to-bottom flow orientation. Before powering the system, consult the manufacturer's manual to confirm correct port alignment and wiring for the addressable LED connector. Align the arrow on the 3‑pin D-RGB connector with the +5V marking on the motherboard header. After installation, fill and bleed the loop according to standard liquid cooling procedures, then verify visible impeller movement to confirm proper pump operation and unobstructed flow.

Usage recommendations

For reliable operation, ensure fittings are tightened to prevent leaks, route the D-RGB cable without sharp bends, and perform a controlled leak test before full system startup. Place the indicator where it is easily visible during initial filling and testing. Follow the manual for port orientation and LED wiring to avoid incorrect flow direction or lighting issues.

Specifications

Type:
Flow indicator
Product colour:
Black, Transparent
All features
Connecting thread:
1/4

Performance

Type:
Flow indicator

Design

Product colour:
Black, Transparent

Description

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Customer reviews

Customer questions

FAQ

How much does the Flow indicator EKWB 3831109829721 cost, and is it available for purchase?

The price is 77.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 20.07.2026 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, Installment. All transactions are 100% secure and encrypted.

Can Flow indicator EKWB 3831109829721 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Flow indicator EKWB 3831109829721 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 EKWB 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 EKWB 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.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, 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.

Where can I download the instructions for Flow indicator EKWB 3831109829721?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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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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