I don't like ratcheting cartridge guns because to me they are almost disposable compared to commercial guns. This item was CHEAP ($10) and paid for itself by installing four 29-ounce tubes of Sikaflex SL at my expansion joints. I wouldn't pay $20 for it; This type of gun can be a PITA if you are not an experienced sealer as it uses the method of stopping the flow when moving or changing the direction of the bead application. In short, a great buy at this price!
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