
Wide Range of Specialised Electrodes
We offer customised conductivity and pH electrodes tailored to your specific requirements, ensuring precise performance for your unique applications. Contact us today to discuss your custom specifications, and let our experts design the perfect sensor for you!

Virkon
Virkon™ disinfectants offer fast, effective protection against viruses, bacteria, and fungi, ensuring optimal hygiene in healthcare and industrial settings.

Virkon Aquatic
Virkon Aquatic is a powerful, broad-spectrum disinfectant designed specifically for aquaculture - it is ideal for disinfecting tanks, nets, boots, and other gear.
Welcome to Russell Mainstream Supply Ltd
We specialise in hospital / laboratory hygiene, water treatment, process control and veterinary care.
Located in Scotland ,we are committed to providing excellent service, competitive pricing, and fast delivery, worldwide.
We take great pride in our customer care. Please don't hesitate to contact us, and we'll be happy to advise you on our products and provide tailored solutions.

Vet Table/Trolley
Our unique and competitively priced tables and trolleys provides veterinary practices with a robust and cost-effective solution.
Please contact us to discuss your specific requirements. Our team specialises in creating bespoke sizes tailored to your unique needs.

Dilvac Dewar Flasks
The Dilvac Dewar flask range offers high-performance, vacuum-insulated containers designed for the safe storage and transport of cryogenic liquids such as liquid nitrogen, oxygen, and dry ice. In capacities from 200 mL to 10 L. Practical features include vented lids, carrying handles, and rubber-cushioned bases, making them ideal for laboratory, clinical, and industrial applications.

Oasis Water Purification
Oasis 3000 Water Purification Tablets are high-strength UK-made NaDCC tablets (~5 g each), releasing up to 3,000 ppm chlorine per litre. They effectively kill bacteria, viruses, spores, algae, fungi, cysts and disease-causing pathogens like Salmonella, E. coli, cholera, typhoid and polio, making water safe to drink in just 30 minutes.
Bestselling Products
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Oasis 3000 Water Purification Tablets - 100 Tablets per Tub
Regular price From £15.87Regular priceUnit price / per -
Oasis 1000 Water Purification Tablets- 200 Tablets per Tub
Regular price £14.05Regular priceUnit price / per
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"I recently purchased a vet table from Russell Mainstream Supply Ltd, and I couldn’t be more impressed! The build quality is excellent-sturdy, durable, and designed to last. Delivery was incredibly fast, and their pricing is very competitive compared to other suppliers." - Lucy Cameron
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"I bought some pH electrodes from RMS Ltd! Excellent quality, ensuring precise and consistent measurements. Their prices are very competitive. I’ll definitely be ordering again!!"- Matt Hughes
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I ordered Oasis purification tablets from Russell Mainstream Supply , and I’m extremely pleased with my purchase! The tablets are highly effective, easy to use, and perfect for ensuring clean, safe water. Delivery was super fast!" - Claire Wright
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Perasafe Sterilant (Rely+On) 810g Bottle
Regular price From £43.89Regular priceUnit price / per -
Perasafe Sterilant (Rely+On) 162g Bottle
Regular price From £14.50Regular priceUnit price / per -
Perasafe Sterilant (Rely+On) 81g Bottle
Regular price From £8.92Regular priceUnit price / per -
Perasafe Sterilant (Rely+On) 16.2g Sachets
Regular price From £2.10Regular priceUnit price / per
Russell Mainstrean Supply
Russell Mainstream Supply Ltd – Decades of sensor heritage, global water‑treatment expertise.
Blog posts
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Keep Your Water Tanks Safe and Fresh with Oasis...
Discover how Oasis 3000 Water Purification Tablets keep your water tanks clean, safe, and fresh. Ideal for home storage, motorhomes, boats, and emergency use—these easy-to-use tablets kill bacteria and eliminate...
Keep Your Water Tanks Safe and Fresh with Oasis...
Discover how Oasis 3000 Water Purification Tablets keep your water tanks clean, safe, and fresh. Ideal for home storage, motorhomes, boats, and emergency use—these easy-to-use tablets kill bacteria and eliminate...