Review on BELAROKO 3100A Caulking Regulator Cartridge: Boost Your Caulking Efficiency! by Deejay Devarashetty

Bought this to fill long quarter inch cracks in my concrete driveway. This worked pretty much as advertised and made it a lot easier to control sealant/filler placement without having to press the button again. The flow is set independently of the trigger and I would prefer the flow rate to be controlled by the trigger. But I don't caulk much, so this device worked very well for my purposes. If I were doing a lot of sealing/filling work I would go for one that controls the flow of feed with a trigger. But for my purposes, the price/performance ratio of this device was just right.