Best Drain Unblocker Caustic Soda Deals Online in the UK (10 Deals Found)

Last Updated - 24/09/2026 Sort By:

Best Choice
Epished

New
Powerful Drain Cleaner & Unblocker – 1KG Caustic Soda Crystals | Heavy Duty Sink & Pipe Unblocker for Grease, Hair & Org
HEAVY DUTY DRAIN UNBLOCKER: Made with powerful caustic soda crystals to dissolve grease, hair, food waste and organic bl

£7.23
EasyClean

New
Powerful Caustic Soda Drain Cleaner | Effective Clog Remover, Industrial Strength Formula, Fast Action (3 X 375gm) (Pack
Product Quantity : 1125gm (375g x 3 Bottles) , & 1 KG

£10.99
The Retail Heaven

New
Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effectiv
Drain cleaners and unblockers 1KG Caustic Soda Drain Cleaner Caustic Soda Powder Sink and Drain cleaner strong the origi

£8.11
Max

New
Max Strength Caustic Soda, High Performance Caustic Soda Drain Unblocker and Degreaser, Powerful Sodium Hydroxide for Bi
PREMIUM GRADE CAUSTIC SODA DEGREASES A RANGE OF SURFACES - Max Strength Caustic Soda cuts through grease, oil and build-

£9.00
Best Value
HG

New
HG Kitchen Drain Unblocker | Clears Blocked Sinks | 1L
HG Drain Unblocker for kitchen sinks: A fast acting drain unblocker and kitchen sink cleaner. Clears the pipes quickly a

£6.85 £7.11
Max

New
Max Strength Caustic Soda, High Performance Caustic Soda Drain Unblocker and Degreaser, Powerful Sodium Hydroxide for Bi
HIGH PERFORMANCE CAUSTIC SODA DEGREASES A RANGE OF SURFACES - Max Strength Caustic Soda cuts through grease, oil and bui

£6.00
Spartax

New
Sodium Hydroxide, Caustic soda powder, Lye for soap making, Sink unblocker the best drain cleaners and unblockers, Stron
a. Soap making supplies. Sodium hydroxide powder is crucial in soap and detergent production. Great for soap making kit.

£11.00
Thomas Bewick

New
5 Kg Drain Unblocker | Caustic Soda | Professional Grade Drain Cleaner, Commercial Kitchen Degreaser, Soap & Chemical Ma
High Purity 98% Drain Cleaner – Bulk 5kg pack for reliable industrial use.

£35.79
MUSON TRADE

New
MUSON Caustic Soda 5KG | Professional Drain Unblocker & Grease Remover | Sodium Hydroxide 98% | Heavy Duty Sink & Pipe C
Caustic Soda 5KG Professional Grade 98%: Ideal for unclogging sewer blockages, cleaning sinks, and breaking down grease.

£31.99
Generic

New
Caustic Soda Drain Unblocker Powder 1kg Professional Strength for Kitchen & Bathroom Sinks - Fast-Acting Pipe Cleaner -
Professional-Grade Drain Unblocking Power:- Rapidly dissolves hair, grease, food waste, and organic blockages in kitchen

£9.99

10 Drain Unblocker Caustic Soda deals are available from: Amazon stores, starting from £6.00.
The biggest discount we found is 4% on HG Kitchen Drain Unblocker | Clears Blocked Sinks | 1L at Amazon.
The lowest price we found is £6.00 while the highest is £35.79.
Prices for the best Drain Unblocker Caustic Soda deals average at £13.69.
Last updated on September 24, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Drain Unblocker Caustic Soda.