MSR IsoPro is canister fuel for backpacking stoves, an 80/20 blend of isobutane and propane in a threaded, self sealing canister. OMG lists the small canister, which MSR labels 3.9 oz (110 g), and the 16 oz (450 g) canister.

What it's for

Fuel for canister stoves that take a threaded, self sealing canister, including MSR's own stoves. Check your stove's manual for the fuel type and fitting it requires.

How it works

80/20 blend: the mix of isobutane and propane keeps a higher internal pressure at lower temperatures, which helps the stove keep its output as the air gets cold and the canister empties.

Isobutane purity: MSR states its isobutane holds 5% or less n-butane.

Fuel gauge: MSR lists a float gauge on the small and 8 oz canisters. You float the canister in water and read the fuel level from where the waterline sits against the printed scale.

Features

• Burn: clean burning, so the stove needs no fuel related maintenance
• Recycling: the canister is recyclable; MSR says to check with your local recycling center

Compatibility

• Fits inside: the small canister nests inside the 1.0 L WindBurner and Reactor stove systems
• Valve: threaded, self sealing canister

Specs

• Small canister fuel weight: 3.9 oz (110 g)
• Small canister total weight: 7.4 oz (210 g)
• Small canister size: 3.5 x 2.7 in (8.9 x 6.9 cm)
• 16 oz canister fuel weight: 16 oz (450 g)
• 16 oz canister total weight: 1 lb 7 oz (652 g)
• 16 oz canister size: 4.4 x 6 in (11.2 x 15.2 cm)
• Made in: South Korea
• MSR part numbers: 06927 (3.9 oz), 04589 (16 oz)

Warning

WARNING: Cancer and reproductive harm