---
product_id: 58029357
title: "McAlpine DC1-BL Black 4\"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible."
brand: "mcalpine"
price: "NZ$80"
currency: NZD
in_stock: true
reviews_count: 8
category: "Mcalpine"
url: https://www.desertcart.nz/products/58029357-mcalpine-dc1-bl-black-4-110mm-drain-connector-o-ring
store_origin: NZ
region: New Zealand
---

# Leak-proof O-ring seal socket Finned seal spigot for versatile pipe connections 4"/110mm BS 4514 pipe compatibility McAlpine DC1-BL Black 4"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible.

**Brand:** mcalpine
**Price:** NZ$80
**Availability:** ✅ In Stock

## Summary

> 🚰 Connect with confidence—where precision meets leak-proof perfection!

## Quick Answers

- **What is this?** McAlpine DC1-BL Black 4"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible. by mcalpine
- **How much does it cost?** NZ$80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/58029357-mcalpine-dc1-bl-black-4-110mm-drain-connector-o-ring)

## Best For

- mcalpine enthusiasts

## Why This Product

- Trusted mcalpine brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Watertight Confidence:** Advanced O-ring seal guarantees a leak-proof, secure joint—no more costly water damage or downtime.
- • **Sleek Aesthetic Options:** Available in black and grey to blend flawlessly with your site’s pipework and design preferences.
- • **Versatile Compatibility:** Finned seal spigot adapts effortlessly to cast iron, plastic, or clay pipes for maximum flexibility.
- • **Compact & Durable Design:** Ideal for low-level and underground drainage, combining space-saving form with robust performance.
- • **Precision Fit for Professional Projects:** Seamlessly connects to standard 4"/110mm BS 4514 pipes, ensuring industry-compliant installations.

## Overview

The McAlpine DC1-BL is a high-quality 4"/110mm drain connector featuring a leak-proof O-ring seal and finned spigot for secure, versatile connections to BS 4514 standard pipes. Available in black or grey, it’s designed for professional-grade, compact, and durable drainage solutions, perfect for underground and low-level installations.

## Description

Shop McAlpine DC1-BL Black 4"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible.. Free delivery on eligible orders of £20 or more.

Review: Really well made - Well made
Review: Cast to pvc does the trick - Fits into cast soil stack down pipe with ease and allows to change to pvc Much better than flexible coupling or time savers

## Features

- Available in Black and Grey to match different pipework and site aesthetics.
- Leak-proof 'O' seal socket provides a secure, watertight connection to 4"/110mm pipes.
- Ideal for low-level connections and underground drainage where a secure, compact connector is required.
- Compatible with 4"/110mm pipes manufactured to BS 4514 standards.
- Finned seal spigot for straightforward internal connections to cast iron, plastic, or clay pipes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005CTSJC0 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 181,531 in DIY & Tools ( See Top 100 in DIY & Tools ) 399 in Water Heaters & Parts |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (97) |
| Date First Available | 8 Oct. 2012 |
| Guaranteed software updates until | unknown |
| Included Components | trap; fittings; |
| Item Package Quantity | 1 |
| Item Weight | 200 g |
| Item model number | DC1-BL |
| Manufacturer | McAlpine |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | DC1-BL |
| Product Dimensions | 19 x 13 x 20 cm; 200 g |

## Images

![McAlpine DC1-BL Black 4"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible. - Image 1](https://m.media-amazon.com/images/I/51nicBpxDWL.jpg)
![McAlpine DC1-BL Black 4"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible. - Image 2](https://m.media-amazon.com/images/I/612gSZKPPxL.jpg)

## Questions & Answers

**Q: When should I use an anti-syphon or resealing trap?**
A: Generally, the waste pipe or discharge pipe from an appliance is beyond the limitations of an unvented waste pipe. Usually more critical on the basin and bidet Wastes.

**Q: What is the difference between an anti-syphon trap and a re-sealing trap?**
A: A re-sealing is designed to allow air to pass through the water seal under negative pressure but will retain sufficient water. An anti siphon trap has a small mechanical valve which opens under negative pressure.

**Q: Why does water not run away in my shower?**
A: If it is not due to the obvious reason of a blockage caused by a buildup of debris, the problem could be due to back pressure within the discharge pipe.

**Q: What is the maximum thickness of bath that your bath fillers can be installed on?**
A: The maximum thickness of the bath is 20mm and unfortunately, we do not make an extension ferrule to extend that length.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really well made
*by D***D on 23 April 2025*

Well made

### ⭐⭐⭐⭐⭐ Cast to pvc does the trick
*by R***. on 2 November 2025*

Fits into cast soil stack down pipe with ease and allows to change to pvc Much better than flexible coupling or time savers

### ⭐⭐⭐⭐⭐ Did the job well.
*by G***A on 31 August 2025*

Siliconed it in place on a hot day as it was a bit softer than expected, so belt and braces! Held fast 3 months on✅

## Frequently Bought Together

- McAlpine DC1-BL Drain Connector-Black
- Pipestation 4" PVC Rubber Coupling for Soil Drain Repair, Includes Hose Clips
- FloPlast 92.5 Degree Double Branch Black Soil

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**Shop now:** [https://www.desertcart.nz/products/58029357-mcalpine-dc1-bl-black-4-110mm-drain-connector-o-ring](https://www.desertcart.nz/products/58029357-mcalpine-dc1-bl-black-4-110mm-drain-connector-o-ring)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-10-18*