The classic B-3974-250 has been replaced by the B-3974-350. This interchangeable automatic universal roll paper towel dispenser module is a smart choice for places with changing traffic and usage needs. It comes with an intuitive, user - friendly light that guides users to the towel activation zone. You can easily convert from folded towel and 'touch - free' roll towel to automatic, universal roll towel without replacing existing wall cabinets. It accepts 8 - inch wide, 8 - inch diameter universal standard - core non - perforated rolls and works well with our B - 3944, B - 3961, and B - 3974 series. In February 2023, Bobrick made a product design change. For combination towel and waste units made before February 2023, you'll need a 3974 - 85 retrofit kit (for sale) to install the 3974 - 350 properly. For units made after February 2023, just the 3974 - 350 is enough. If you're not sure which unit you're replacing, units with an arrow cutout on the front (like the 3974 - 350 shown here) are the current version and don't need the retrofit kit. This dispenser module is made of stainless steel with all - welded construction, making it durable and corrosion - resistant. Its satin - finished exposed areas ensure it looks great. With its no - touch dispensing feature, it boosts the sanitation of your restroom, kitchen, or washroom. It can accept 800 - foot long rolls with an 8 - inch diameter and a 1.5 - 2 - inch core, dispensing one towel per use and allowing you to set three different paper - cutting lengths. It can also handle a 3.5 - inch stub roll. The optional 'Paper Saver' feature provides a shorter second sheet right after the first, saving you money on paper towel waste. You can power it with 4 'D' size alkaline batteries (sold separately) or an optional 6 - volt DC power supply. The intuitive LED light flashes green when ready to dispense, orange when the battery is low, and red when it needs service or isn't ready to dispense.

Using your Bobrick B - 3974 - 350 paper towel dispenser is easy. First, make sure you have the right roll of paper towels. It should be a universal standard - core, non - perforated roll, 8 inches wide and 8 inches in diameter. If you're using a unit made before February 2023, you'll need to buy and install the 3974 - 85 retrofit kit. For units made after that date, just insert the 3974 - 350. When you approach the dispenser, the intuitive LED light will guide you to the dispense zone. When it flashes green, it's ready to give you a towel. To get a towel, just put your hand in the dispense area, and one towel will come out. You can set the dispenser to cut the paper towels at three different lengths according to your needs. The 'Paper Saver' feature is a great way to save money. It gives you a shorter second sheet right after the first. You can power the dispenser with 4 'D' size alkaline batteries (which you need to buy separately) or an optional 6 - volt DC power supply. Keep an eye on the LED light. If it flashes orange, it's time to change the batteries. If it flashes red, there might be a problem, and you should check if it needs service. For maintenance, clean the dispenser regularly with a soft, damp cloth. Make sure not to use abrasive cleaners as they can damage the satin - finished surface. Also, keep the inside of the dispenser free from dust and debris to ensure smooth operation.