5mm Neoprene Insulated Slip for 150 Gallon Oval Stock Tank Koozie

150 Gallon Stock Tank Insulated Neoprene Sleeve (5mm)

The Polar Protector 150 Gallon Insulated Neoprene Sleeve is designed to wrap your stock tank in thermal insulation—helping maintain colder (or warmer) water temperatures by reducing heat transfer through the sides of your tank.

Made from thick 5mm neoprene (similar to a wetsuit or koozie), this sleeve improves temperature stability and efficiency for cold plunge setups, livestock tanks, and outdoor water systems.

Key Benefits

• Helps keep water colder longer by reducing heat transfer through tank walls
• Improves temperature stability in changing outdoor conditions
• Reduces ice usage by slowing heat gain
• Also helps retain warmth in colder climates
• Keeps tank exterior cleaner by protecting against dirt and mud

How It Works

This neoprene sleeve acts as a thermal barrier around your tank, limiting heat exchange between the water and the surrounding environment. By insulating the sides of your tank, it helps maintain more consistent water temperatures over time—especially when exposed to sun, wind, and fluctuating air temperatures.

Built for Cold Plunge Performance

The 5mm neoprene material provides meaningful insulation without adding bulk, making it ideal for cold plunge users who want to extend cold retention and reduce the need for constant ice replenishment. It can also help prevent freezing in colder conditions when paired with a heater.

Durable, Secure Fit Design

Designed specifically for 150-gallon oval stock tanks, this sleeve features built-in handles, a buckle system, and a drawstring for a tight, secure fit. The bottom includes reinforced materials for added durability and long-term outdoor use.

Ideal For

• 150 gallon oval stock tanks (Rubbermaid, Tuff Stuff, and similar)
• Cold plunge and ice bath setups
• Livestock tanks exposed to temperature swings
• Outdoor water systems where efficiency matters

Neoprene Sleeve vs Covers

This sleeve insulates the sides of your tank, while covers protect the top. For best results, use both together—creating a full insulation system that reduces heat transfer from all directions.

Pro Tip: Build a Full System

Pair this sleeve with a hard insulated cover to create a top + side insulation system. This combination significantly improves temperature retention and overall efficiency compared to using either product alone.

Fit & Compatibility

Designed for 150 gallon oval stock tanks. Installation involves sliding the sleeve over the tank and tightening the buckle and drawstring for a snug fit.

Frequently Asked Questions

Does this replace a cover?
No. This insulates the sides of your tank. A cover is still needed to block debris and insulate the top.

Will this reduce how much ice I use?
Yes. By slowing heat gain, it can reduce how often you need to add ice.

Is this waterproof?
Yes. The neoprene material resists moisture and outdoor exposure.

Does it work in cold weather?
Yes. It helps prevent rapid heat loss and can reduce freezing when used with a heater.

Is it difficult to install?
No. It slides over the tank and secures with a buckle and drawstring system.