# Pressure regulator CALEFFI 535151 3/4" with replaceable cartridge and manometer

**URL:** https://aio.lv/en/product--caleffi-535151--5114590
**Data updated:** 2026-03-07 15:14 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** CALEFFI
**Manufacturer code:** 535151
**EAN:** 8016615014563
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 115.99 €
**Prices and availability valid until:** 2026-07-04 23:59
**Price without VAT (21%):** 95.86 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-535151--5114590

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

Pressure regulator CALEFFI 535151 is a 3/4" device with a replaceable cartridge and integrated manometer for accurate downstream pressure control. Designed for potable water and heating systems, it provides stable pressure reduction, easy maintenance via cartridge replacement, and visual pressure readout for commissioning and diagnostics. Suits residential and light commercial installations.

## Long description

Pressure regulator CALEFFI 535151 3/4" with replaceable cartridge and manometer is a compact pressure-reducing valve designed for potable water and heating installations. The integrated manometer provides a visual readout of downstream pressure, while the replaceable internal cartridge allows maintenance without replacing the entire body. Constructed for residential and light commercial systems, this regulator maintains stable downstream pressure to protect appliances, plumbing fixtures, and system components from overpressure.
Advantages
The regulator combines a pressure-reducing mechanism with an onboard manometer for straightforward commissioning and diagnostics. Its replaceable cartridge simplifies routine maintenance and reduces service time and cost by enabling targeted part replacement. The 3/4" threaded connections suit standard plumbing fittings, and the device is built to provide consistent pressure control suitable for both potable water and heating circuits. The compact design facilitates installation in confined spaces.
Suitable for
Residential water supply systems to protect fixtures and appliances
Small commercial and light-industrial plumbing installations
Heating circuits requiring stable downstream pressure
Applications where periodic maintenance or cartridge replacement is anticipated
Key specifications
Connection size: 3/4" threaded inlet and outlet
Replaceable internal cartridge for maintenance
Integrated analog manometer for downstream pressure indication
Designed for potable water and heating system use
Compact brass body suitable for confined installation spaces
How to use
Install the regulator in the supply line following flow direction markings and standard plumbing practice, ensuring compatible 3/4" threaded fittings and proper sealing. During commissioning, adjust the outlet pressure according to system requirements while observing the integrated manometer. For maintenance, isolate the unit, relieve system pressure, and remove the cartridge for inspection or replacement; reinstall the cartridge and re-pressurize the system, verifying the set downstream pressure on the manometer.
Usage recommendations
Verify water quality and compatibility with valve materials, and fit a strainer or filter upstream to reduce debris ingress and extend cartridge life. During installation and service, follow local plumbing codes and manufacturer torque/installation guidelines. Regularly check the manometer reading to confirm stable downstream pressure and perform cartridge replacement when performance deviations or leakage are observed.

## FAQ

### How much does the Pressure regulator CALEFFI 535151 3/4" cost, and is it available for purchase?

The price is 115.99 € (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 29.06.2026 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 Pressure regulator CALEFFI 535151 3/4" 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 CALEFFI 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 CALEFFI 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/5114590/41627569_large.webp