Review on 🔧 Marathon 20990 4.10/3.50-4" Replacement Inner Tube: Ideal for Hand Trucks, Dollies, Pressure Washers, Compressors, Snow Blowers, and More by Louis Asok

I've tried probably half a dozen tubes of this size and brand. You hit or miss. Some of them last a while, others fail instantly, like the current one, which exploded under about 25 pounds of pressure on the first fill-up. I replaced one that was fine for a couple of months but then decided to open about an inch from the valve. And none of them were pinched or damaged during installation, with partial inflation during assembly, checking for fit and free play, and then slow inflation to the 30 pounds marked on the tire. So overall, either the quality control is poor or they're usually junk, with the occasional tube that lasts a while if you're lucky. Unfortunately it seems to be getting harder and harder to find good quality whistles these days.