# NIBCO 437-101 Water Supply Coupling 3/4 inch x 1/2 inch Female/Female Threaded

**URL:** https://aio.lv/en/product--nibco-437-101--12505076
**Data updated:** 2026-06-10 09:31 (EEST)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** NIBCO
**Manufacturer code:** 437-101
**EAN:** 5903424723331
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 2.06 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nibco-437-101--12505076

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

The NIBCO 437-101 is a high-quality water supply coupling designed for reliable pipe connections in plumbing systems. Featuring a 3/4 inch by 1/2 inch female-to-female threaded configuration, this fitting ensures a secure and leak-proof joint. It is suitable for residential and commercial water distribution applications, providing durability and ease of installation for professional plumbing projects.

## Long description

The NIBCO 437-101 water supply coupling is a professional-grade plumbing component engineered for connecting pipes of different diameters within water distribution systems. This fitting features a 3/4 inch by 1/2 inch female-to-female threaded configuration, allowing for a secure and reliable transition between pipe sizes. Constructed from durable polyvinyl chloride (PVC), this coupling is designed to withstand standard residential and commercial water supply pressures while maintaining structural integrity over time.
Advantages
The primary benefit of this NIBCO coupling is its robust PVC construction, which offers excellent resistance to corrosion and chemical degradation common in plumbing environments. The precision-engineered threads ensure a tight, leak-proof seal, reducing the risk of water damage and maintenance requirements. Its compact design facilitates easy installation in tight spaces, making it an ideal choice for both new plumbing installations and repair projects where space is limited.
Suitable for
Residential water supply systems
Commercial plumbing distribution lines
Connecting pipes with 3/4 inch and 1/2 inch threaded ends
General cold water piping repairs
When it may not be suitable
This coupling is not intended for use in high-temperature applications, as the PVC material is rated for operating temperatures between 0 and 45 degrees Celsius. It should not be used in systems carrying hot water or steam, as excessive heat can compromise the material's strength and lead to failure.
Key specifications
Material: Polyvinyl chloride (PVC)
Connection type: Female/Female threaded
Size: 3/4 inch x 1/2 inch
Operating temperature range: 0°C to 45°C
Color: White
Number of connections: 2
How to use
To install the coupling, ensure that the pipe ends are clean and free of debris. Apply an appropriate thread sealant or plumber's tape to the male threaded ends of the pipes to ensure a watertight connection. Thread the pipes into the coupling by hand until firm, then use a wrench to tighten the connection slightly, taking care not to overtighten, which could crack the PVC material. Verify the connection for leaks after the system is pressurized.
What to consider before purchase
Verify that your pipe system operates within the 0-45°C temperature range
Ensure the pipe threads are compatible with the female NPT standard
Check that the pipe diameters match the 3/4 inch and 1/2 inch specifications
Usage recommendations: Always inspect the coupling for any cracks or manufacturing defects before installation. Do not use chemical solvents that are incompatible with PVC, and ensure the fitting is properly supported to prevent mechanical stress on the threaded joints.

## FAQ

### How much does the NIBCO 437-101 Water Supply Coupling 3/4 x 1/2 cost, and is it available for purchase?

The price is 2.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 105 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 Friday 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 NIBCO 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 NIBCO 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/12505076/68845842_large.webp