TEC Products FlexAll Flexible Oil Change Funnel, Red 12x4 in — Nitrile, Durable Heat-Resistant

The TEC Products FlexAll Long Flexible Oil Change Funnel is a 12 x 4 inch nitrile-rubber funnel designed to make oil, transmission fluid, and other automotive fluid transfers easier, cleaner, and more durable than standard plastic funnels.

If you change fluids on vehicles, small engines, or equipment, the FlexAll funnel offers a flexible, seamless alternative to brittle plastic funnels. Its nitrile rubber construction resists tearing, tolerates a wide temperature range, and has a smooth interior that minimizes residue and drips. The 4" mouth and 12" length provide reach and flow control for tight fill ports, dipstick tubes, and hard-to-access reservoirs.

How does the FlexAll funnel improve oil changes?

The flexible nitrile body bends to reach awkward openings and holds up to repeated use without cracking. Compared with cheap plastic funnels, it resists fuel and oil swelling and keeps seals intact for cleaner, safer pours.

• Seamless nitrile rubber reduces leaks and cracking.
• 12" length reaches deep or offset fill points.
• 4" diameter mouth supports steady flow and easier pouring.
• Smooth interior minimizes fluid residue and dripping.

Will this funnel work with transmission fluid, coolant, and other liquids?

Yes—FlexAll is formulated to handle a range of automotive fluids and solvent types. Its material resists common automotive chemicals and performs across cold and hot conditions, so it’s suitable for multiple service tasks around the shop or garage.

• Compatible with transmission fluid, engine oil, coolant, and kerosene.
• Temperature range from -21°F to +221°F for reliable performance.
• Resistant to swelling from fuels and many additives.
• Durable under pressure for cleaner, controlled transfers.

How do I use and care for the FlexAll funnel to extend its life?

Using the funnel is straightforward: insert the narrow end into the fill port, bend as needed to align, then pour at a steady rate. Rinse after use with an appropriate solvent or soap and water depending on the fluid; store dry away from direct sunlight to preserve the nitrile rubber.

• Rinse promptly after use to avoid residue buildup.
• Avoid prolonged exposure to UV and ozone for longer life.
• Inspect for cuts or degradation before each use.
• Store flat or hung to retain shape and flexibility.

What makes this product a better choice than disposable funnels?

FlexAll funnels are built for repeat use and toughness: the nitrile rubber construction tolerates small impacts, chemical exposure, and flexing without failing. Choosing a reusable funnel reduces waste, saves money over time, and offers better handling and spill control during routine maintenance.

• Heavy-duty nitrile resists tears and chemical attack better than thin plastic.
• Seamless design reduces leak points and contamination risk.
• Reusable and easy to clean—lower lifetime cost than disposables.
• Proudly made in the USA by TEC Products, a family-owned Michigan business.

Who is this for? The TEC Products FlexAll Long Flexible Oil Change Funnel is ideal for home mechanics, professional technicians, fleet maintenance staff, and anyone who performs regular fluid service on cars, trucks, motorcycles, lawn equipment, or small engines. If you need a reliable, bendable funnel that tolerates automotive fluids and frequent handling, this funnel is made to reduce spills, reach tight fill points, and last through years of service.