Introducing AlphaDrain
A complete all-in-one overflow system built for speed, fit, and finish.
One Brand, One Solution
All your overflow parts, one source
Faster, Cleaner Installs
Tighter fits for neater pipes
Save Time, Save Money
Simpler installs, less time on site
AlphaDrain: The Professionals' Choice
At Alpha Wholesale, we understand that the smallest components can make the biggest difference on-site. That’s why our AlphaDrain overflow lengths and fittings range are engineered to deliver consistency, ease of installation, and long-term performance across a wide variety of AC and plumbing applications.
Whether you're working on domestic systems or commercial installations, our selection of high-quality plastic drain fittings ensures you have the right parts to get the job done.
“ Purchasing was so smooth, I thought I’d forgotten to buy it! No drama, no fuss. I’d absolutely recommend AlphaDrain, unless you enjoy unexpected indoor water features. "
Kern Biss, Contracts Engineer - Adcock
From Straight Runs to Tight Turns, We’ve Got It All
Our range includes everything from straight lengths and elbows to tees, reducers, and connectors, all designed to integrate effortlessly into overflow and condensate drainage systems. These fittings are ideal for use in your HVAC setups or anywhere that overflow protection and efficient drainage is essential.
24 Months of Trusted Protection
AlphaDrain comes with a 2-year guarantee, giving you confidence in its long-term reliability and quality. This warranty covers all manufacturing defects and material faults, ensuring each installation meets high professional standards.
Complete System Compatibility
Using components from different brands can cause installation issues and compromise workmanship. Whilst AlphaDrain is compatible with a variety of of brands, it offers a single, fully compatible system for reliable, high-quality installs.
Engineered to Last
Built for strength and stability.
Essential AlphaDrain Components & Accessories
Select the ideal AlphaDrain parts for your HVAC needs.
Our 3m straight lengths are ideal for flexible and extended overflow pipework. They can be easily cut to size and joined with our solvent weld connectors, available in various diameters to fit your system.
For smooth directional changes, use our 90° and 45° elbows, designed to maintain efficient flow and minimise blockages.
We also stock a variety of strap bosses, adaptors and reducers, allowing you to connect overflow pipework to larger waste systems or integrate with existing installations.
These fittings are essential for adapting between different pipe sizes or materials, and help ensure compliance with plumbing regulations and best practices.
To support quick and neat installations, we offer accessories like solvent weld cement and pipe shear cutters, giving you everything you need to complete the job with accuracy and ease.
Our fittings are supplied in trade packs, making them ideal for merchants and contractors who need reliable stock on hand.
Thicker Wall Design for Perfect Fits
Reducers fit tees perfectly, keeping overflow pipes straighter for longer.
40 Product Lines Over 40 Years
With over 40 individual AlphaDrain product options available in 21.5mm, 32mm, and 40mm sizes, we ensure you always have access to the right fittings for every project. AlphaDrain occupies over 20 pallet spaces in our warehouse, so it’s always in stock and ready to ship straight away.
Strength You Can Trust
One of the standout features of the AlphaDrain overflow system is that it provides a secure, leak-free connection that’s both durable and installer-friendly. Available in a variety of sizes and your choice of either white or black, these fittings are manufactured from high quality PVC-U, ensuring resistance to corrosion, chemical damage, and temperature fluctuations.
AlphaDrain Technical Specifications
| MATERIAL | CONNECTION TYPE |
COLOURS | WORKING TEMPERATURE | BRITISH STANDARD |
| PVC-U | Solvent Weld | Black & White | 60° C | EN1329-1 |
| PRODUCT | 3/4" (21.5mm) |
1 1/4" (32mm) | 1 1/2" (40mm) | 2" (50mm)* |
| 3M Straight Lengths | ||||
| Straight Connector | ||||
| 90° Elbow Knuckle | ||||
| 45° Elbow | ||||
| Tee Piece | ||||
| Screw Access Fitting | ||||
| Pipe Clips | ||||
| Reducer |
We also offer a vast range of accessories including, solvent cement, compression fittings, stud clips and more!
*Please note that 50mm drain it is not part of the AlphaDrain range, however we are able to supply alternatives to suit.
Why Go All-In With AlphaDrain?
AlphaDrain isn’t just another overflow system, it’s a smarter, installer-focused solution designed to make your work faster and more reliable from start to finish.
✅ Optimised workflow helps you save time and reduce installation pressure.
✅ Fewer errors and less waste make AlphaDrain a more cost-effective choice.
✅ Uniform components ensure smooth, user-friendly connections.
✅ Clean, professional installs that help build trust with your clients.
✅ Free troubleshooting and expert support whenever you need it.
✅ Exclusively from Alpha - built for HVAC pros.
AlphaDrain in Action
Watch AlphaDrain come to life in this overview, showcasing the key elements that make up the overflow system.
Whether you're working on HVAC setups or bathroom installs, AlphaDrain is the go-to choice for HVAC contractors who want consistent results and a smooth, stress-free installation.
Expert AlphaDrain Support
At Alpha, we make working with AlphaDrain straightforward. Our HVAC experts provide timed and multi-drop delivery options to keep your schedule running smoothly, along with fast turnaround on quotes so you can plan accordingly.
If you have any technical questions or need clarification, we work directly with manufacturers to get you clear, accurate answers.
Frequently Asked Questions
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What makes AlphaDrain different from other overflow systems on the market?
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AlphaDrain is a complete, all-in-one solution designed specifically for HVAC and plumbing professionals. Unlike systems that require mixing and matching components from different brands, AlphaDrain offers a fully compatible range, including straight lengths, elbows, tees, reducers, and accessories - all engineered for quick installs.
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Does AlphaDrain come with a guarantee?
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Yes! AlphaDrain includes a 2-year guarantee that covers all manufacturing defects and material faults.
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What colours is AlphaDrain available in?
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AlphaDrain is available in both white and black, allowing you to choose the best match for your project requirements.
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What sizes is AlphaDrain available in?
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AlphaDrain is available in 21.5mm, 32mm, and 40mm sizes to suit a wide range of installation needs. Please note AlphaDrain is not available in 50mm, however we are able to supply alternatives to suit.
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How does the AlphaDrain solvent weld system benefit HVAC installations?
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The AlphaDrain solvent weld system provides a secure, leak-free connection that’s ideal for HVAC environments where vibration and temperature changes can compromise push-fit systems.
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How does AlphaDrain help reduce installation time on-site?
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AlphaDrain is built with the installer in mind. Its tight-fitting solvent weld connections, pre-sized components, and trade-ready packs mean fewer adjustments, less waste, and quicker assembly. This streamlined workflow helps HVAC contractors complete jobs faster and more efficiently, saving both time and labour costs.
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Is AlphaDrain suitable for both residential and commercial HVAC systems?
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Absolutely! AlphaDrain is manufactured from high-grade PVC-U plastic, offering excellent resistance to corrosion, chemicals, and temperature fluctuations. It’s ideal for both domestic and light commercial HVAC installations, including condensate drainage and overflow protection in air conditioning systems.
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Can AlphaDrain be used with existing pipework or waste systems?
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AlphaDrain is compatible with a variety of systems on the market. However, for optimal performance, we always recommend using the complete AlphaDrain system. If you require installation advice, our team is here to help - just give us a call on 01622 831836 or email sales@alphawholesale.co.uk
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What accessories are available to support AlphaDrain installations?
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AlphaDrain offers solvent weld cement, pipe shear cutters, and other essential tools. These accessories are designed to help HVAC professionals achieve a high-quality finish with minimal effort. All components are available in bulk trade packs, making it easy to keep your van or warehouse stocked.
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What are the delivery options for AlphaDrain?
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AlphaDrain is always in stock and ready to ship. For more details, please see our ‘Delivery Options’ page.
Confidence in Every Connection
Whether you're upgrading a bathroom, installing a new HVAC system, or managing a large-scale AC or plumbing project, the AlphaDrain plastics range provides the quality and consistency you can count on.
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