When should I use an anti-syphon or resealing trap?

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.

What is the difference between an anti-syphon trap and a re-sealing trap?

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.

Why does water not run away in my shower?

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.

What is the maximum thickness of bath that your bath fillers can be installed on?

The maximum thickness of the bath is 20mm and unfortunately, we do not make an extension ferrule to extend that length.

Mcalpine Dc1 Bl Black 4 110mm Drain Connector O Ring

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

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

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.

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.

Specifications

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

Reviews

D**D

Really well made

Well made

23.04.2025

R**.

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

2.11.2025

G**A

Did the job well.

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✅

31.08.2025

M**S

does what its made for

connected cast to plastic drain

2.03.2025

D**L

Clayware to plastic by a trusted brand.

Does what it says, perf CT leak free fit.

1.10.2024

J**N

Quick and easy

Just what I needed, easy to use.

13.10.2023

D**K

Fantastic product and the best seller

Just as described. High quality. Highly recommended.

15.05.2020

A**Y

Did the job

Excellent fit from clay to plastic

16.07.2019

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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1 month ago

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฿3586

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Perfect platform for hard-to-find items. Delivery was prompt.

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McAlpine DC1-BL Black 4"/110mm Drain Connector - O-Ring Seal, BS 4514 Compatible.

Description

Specifications

Reviews

Common Questions