# Expansion vessel Reflex DE 33 L 10 bar for domestic hot water (Reflex 7303913)

**URL:** https://aio.lv/en/product--reflex-7303913--12071245
**Data updated:** 2026-03-12 21:50 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Reflex
**Manufacturer code:** 7303913
**EAN:** 4036705099175
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 136.49 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 112.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--reflex-7303913--12071245

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Reflex DE expansion vessel, model 7303913, 33‑litre capacity and 10 bar maximum pressure, designed for domestic hot water (DHW) systems. It compensates thermal expansion, stabilizes system pressure and protects components from overpressure. Suitable for residential hot water installations, boiler and indirect water heater systems requiring a compact 33 L vessel.

## Long description

The Reflex DE expansion vessel 33 L 10 bar is designed for domestic hot water systems to compensate thermal expansion and stabilize system pressure. With a nominal 33‑litre capacity and a maximum allowable pressure of 10 bar, this compact vessel is intended for residential hot water installations, boilers and indirect water heater systems where protecting piping and components from pressure fluctuations is required.
Advantages
The expansion vessel reduces pressure spikes by absorbing excess volume created when water heats, helping to maintain a stable operating pressure in DHW systems. Its compact cylindrical design makes it suitable for installations with limited space and simplifies integration into existing plumbing. Constructed for reliable cyclic operation, the vessel supports long service life when installed and maintained according to system requirements.
Suitable for
 Residential domestic hot water (DHW) systems
 Boiler-fed hot water installations
 Indirect water heaters and storage tanks
 Systems requiring pressure stabilisation and overpressure protection
Key specifications
 Working volume: 33 litres
 Maximum service pressure: 10 bar
 Application: domestic hot water (DHW) systems
 Design: compact cylindrical expansion vessel suitable for wall or floor location depending on installation
 Function: compensates thermal expansion and stabilises system pressure
How to use
Install the expansion vessel in accordance with applicable plumbing codes and the system manufacturer’s instructions. Connect the vessel to the domestic hot water circuit at a location that allows it to intercept thermal expansion, typically near the water heater or boiler return. Ensure the vessel pre-charge pressure is set appropriately for the static pressure of the installation before commissioning. Periodically inspect for leaks and verify the pre-charge pressure during routine maintenance.
Usage recommendations
Verify compatibility with the system operating pressure and water chemistry. Adjust pre-charge pressure to match the cold static pressure of the installation and follow regular inspection intervals to confirm the vessel maintains correct pressure and integrity.

## FAQ

### How much does the Reflex DE 33L 10 bar expansion vessel 7303913 cost, and is it available for purchase?

The price is 136.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 33 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 02.07.2026 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 Reflex DE 33L 10 bar expansion vessel 7303913 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Reflex 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 Reflex 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/12071245/67556134_large.webp