# Repair kit for Marina 300 pump Hagen A18037 – replacement parts for Marina 300 series

**URL:** https://aio.lv/en/product--hagen-ah-0379--12014966
**Data updated:** 2026-03-11 20:49 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Hagen
**Manufacturer code:** AH-0379
**EAN:** 015561380379
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hagen-ah-0379--12014966

## 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 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Repair kit for the Marina 300 pump by Hagen (model A18037). Contains replacement parts intended to restore or maintain the Marina 300 aquarium pump; suitable for servicing the pump’s wear components and ensuring continued operation. Use for routine maintenance or repair to extend pump life and maintain water circulation in aquariums.

## Long description

Repair kit for Marina 300 pump Hagen A18037 is a set of replacement parts designed to restore worn components of the Marina 300 aquarium pump. The kit includes the common wear items needed for routine maintenance or repair to maintain water circulation and extend the service life of the pump. It is intended for use by aquarium hobbyists and technicians who need to service the Marina 300 series to ensure reliable operation.
Advantages
This repair kit provides the specific mechanical parts compatible with the Marina 300 pump, enabling targeted replacement without buying a new unit. Using original-fit components helps maintain pump performance, reduces vibration and noise caused by worn parts, and lowers long-term maintenance costs. The kit lets users perform timely repairs to avoid unexpected pump failure and preserve aquarium water movement.
Suitable for
 Routine maintenance of Marina 300 aquarium pumps
 Repairing worn impeller or housing components
 Restoring pump performance and water circulation in small to medium aquariums
 DIY pump servicing by hobbyists and aquarium technicians
Key specifications
 Compatibility: Designed for Marina 300 series aquarium pumps (Marina 300)
 Content type: Replacement wear parts for mechanical pump components
 Intended use: Restoring impeller assembly, seals and related moving parts
 Materials: Durable plastics and elastomers for water contact components
 Function: Restores rotational balance and sealing to reduce leakage and noise
How to use
Before starting, disconnect the pump from power and drain water from the unit according to the pump manual. Disassemble the pump housing to access the impeller and related components, then remove the worn parts and replace them with the supplied items from the kit, following the original part orientation. Reassemble the pump, verify that seals are seated correctly and that the impeller spins freely by hand, then reinstall the pump in the aquarium and reconnect power. Run the pump while monitoring for leaks, unusual noise, or vibration before leaving it unattended.
Usage recommendations
Perform inspection and replacement of wear parts at regular intervals based on aquarium conditions and operating hours. Clean the pump and strainer of debris before reassembly, and use the kit components only with compatible Marina 300 models to ensure correct fit and safe operation.

## FAQ

### How much does the Repair kit Hagen A18037 for Marina 300 pump cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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, 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 Hagen 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 Hagen 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

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