FlexAll Long Flexible Funnel 12 x 4 in Yellow - Durable Nitrile

In this review of the FlexAll Long Flexible Funnel 12 x 4 in, the bottom line is simple: this is a heavy-duty, flexible funnel built for repeated automotive fluid jobs where durability and a mess-free transfer matter most. The funnel is aimed at DIY mechanics, shop techs and homeowners who change oil, add transmission fluid or pour fuel into tight openings; the single biggest reason to buy is the nitrile rubber construction that resists chemicals and stays flexible where plastic funnels crack or clog.

Key Features

• Chemical-resistant nitrile: The NBR construction handles engine oil, diesel, gasoline and ATF without deteriorating, so users can trust it with multiple fluids.
• Flexible yet shape-holding: The funnel bends to reach awkward openings but retains its mouth shape to ensure smooth, consistent flow.
• Heavy-duty one-piece build: Molded from a single piece of rubber, it resists breaks and blocks residue buildup that can plague multi-part plastic funnels.
• Trim-to-fit outlet: The long 12 in outlet can be shortened to suit tight or recessed filler necks, offering adaptable use across vehicles and equipment.
• Wide 4 in mouth: The large opening speeds pours and accommodates pouring from larger bottles and jugs without frequent stops.

Who It's For

The FlexAll funnel is best for car owners and small shop mechanics who need a reliable, reusable funnel for engine oil changes, transmission fluid top-ups and refueling small equipment. Its chemical resistance and temperature range make it suitable for seasonal jobs and heavier fluids like gear oil and hydraulic fluid.

It may be more than a casual buyer needs if you only pour small quantities infrequently and prefer disposable funnels; likewise, those wanting rigid plastic funnels for a fixed filler neck might prefer a less flexible style.

Pros & Cons

Pros

• Durable nitrile rubber construction stands up to chemical exposure and repeated use.
• Flexible design delivers access to tight openings while maintaining smooth flow.
• Large mouth and long length speed transfers and reduce spills when used properly.
• Proudly made in the USA, offering solid build quality from a family-owned maker.

Cons

• More costly than the cheapest plastic funnels, which some users may find pricey.
• The flexibility that is an advantage can be a drawback for those who prefer a rigid funnel for precise alignment.

Specifications

Our Verdict

The FlexAll 12 x 4 in funnel is a worthwhile buy for anyone who wants a long-lasting, flexible tool for automotive fluid work; its nitrile build and adaptable outlet deliver cleaner pours and better durability than typical plastic funnels. For frequent oil changes and mixed fluid use it represents good value, though occasional users who prefer cheap disposables may find it more than they need.

Frequently Asked Questions

Can I use this funnel for gasoline?
Yes, the nitrile material is compatible with gasoline and other fuels listed by the maker.

Is the outlet removable or adjustable?
The outlet can be trimmed to the desired length for tighter access but is not modular or removable.

Will it handle low winter temperatures?
Yes, the working temperature range down to -21F means it stays flexible in most cold conditions.