SKU: 94495463602

Fernox Alphi-11 Antifreeze Protector 5L (liquid) 61033

Sale price$42.08 Regular price$46.75
Save 10%

Pay in installments of $11.69 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Fernox Alphi-11 Antifreeze Protector 5L (liquid) 61033Fernox Alphi 11 Antifreeze Protector 5L (liquid) 61033 product description: Available in a 5 litre liquid product, Antifreeze Protector Alphi 11 is compatible with all other Fernox products. Antifreeze Protector Alphi 11 is a combined antifreeze and inhibitor product, which provides protection against internal corrosion and limescale formation in domestic central heating systems. Antifreeze Protector Alphi 11 is suitable for use with all metals and

Fernox Alphi-11 Antifreeze Protector 5L (liquid) 61033 product description:

Available in a 5 litre liquid product, Antifreeze Protector Alphi-11 is compatible with all other Fernox products.

Antifreeze Protector Alphi-11 is a combined antifreeze and inhibitor product, which provides protection against internal corrosion and limescale formation in domestic central heating systems.

Antifreeze Protector Alphi-11 is suitable for use with all metals and materials commonly used in heating systems. For long-term protection ensure concentration levels are maintained and checked annually as part of the boiler or system service.

Application, Fitting & Dosing The minimum recommended ‘in-use’ concentration of the product is 25% in order to ensure adequate corrosion protection.

This concentration will protect down to -11 °C. A concentration of 40% will protect down to -22 °C. Alphi-11 Antifreeze Protector can be introduced via the feed and expansion tank, or injected directly into the system via a suitable point (e.g. dosing pot). Introduce into the system after draining off a quantity of water at least equal to the amount of Alphi-11 to be added.

Engage the circulating pump and have the system online for a few hours in order to achieve an even distribution. Concentration 25% 30% 35% 40% Protection -11 °C -15 °C -18 °C -22 °C.

In single feed indirect cylinders, e.g. “Primatic” or similar, potable water chemicals must be used. We recommend untreated systems are thoroughly cleansed and flushed, in accordance with BS 7593:2019 and Benchmark, using Fernox Cleaner F3, before treating with Fernox Alphi-11 Protector, as existing debris can damage the installation. Package, Handling & Safety Fernox Alphi-11 Antifreeze Protector is supplied in 5 and 25 litre containers.

Fernox Alphi-11 Antifreeze Protector is classified as non-hazardous and non-irritant, but as with all chemicals keep out of reach of children. Do not mix with other chemicals with the exception of Fernox products.

Do not take internally. In case of contact with eyes or skin, rinse immediately with plenty of water.

Physical Specification / Properties Fernox Alphi-11 Antifreeze Protector contains mono-propylene glycol. Colour: Colourless Odour: Aromatic (slight) Form: Clear liquid pH (conc.) 6.9 pH (25% solution): 6.4 – 7.4 SG: 1.04 at 20°C

Product features:
  • Protects against corrosion and limescale build-up in central heating systems to maintain energy efficiency
  • Combined antifreeze and corrosion inhibitor to extend system life
  • Prevents pipework freezing
  • Compatible with all metals and materials commonly used in heating systems; including aluminium
  • Non-toxic, environmentally friendly formulation NSF CIAS, KIWA and Belgaqua approved
  • Suitable for heating and chilled water systems
Product manual

Fernox Alphi-11 Antifreeze Protector 5L (liquid) 61033 product specifications

Product video

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94495463602

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 25 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Dawn
Lake Worth, US
★★★★★ 5
Great front pocket wallet/money clip
Size: One Size, Color: Brown
This was for my husband’s birthday. He loved it. He’s also a bit picky with his front pocket wallet/money clips. He doesn’t like the money clips with the magnet. This very good and holds a good wad of cash or a few bills without it being loose or him afraid he’s going to loose something. Also has the window for his license. Holds plenty of cards as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025
R
Verified Purchase
rachel
Alexandria, US
★★★★★ 5
Gift for dad
Color: Vintage Cognac TF02
This leather trifold wallet is both stylish and functional. The leather feels high-quality and softens nicely with use, giving it a classic, worn-in look over time. It has plenty of compartments for cards, cash, and IDs, keeping everything organized without feeling bulky in my pocket. The stitching is solid, and the wallet feels durable enough to last for years. Overall, it’s a practical, elegant choice for anyone who wants a reliable wallet that combines functionality with timeless style.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
D
Verified Purchase
Dave
Waukegan, US
★★★★★ 5
well made wallet
Color: Cognac Vintage TF03
seems to be a good solid product for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
J
Verified Purchase
J L
Los Angeles, US
★★★★★ 5
I love it!!!!
Color: Vintage Cognac TF02
This is a really nice wallet. Leather looks and feels very high quality, and you can't beat the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
V
Verified Purchase
Vanessa Bermúdez
Natrona Heights, US
★★★★★ 4
Good
I liked it. Excellent product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 25, 2025

recommand products