Pystol Mosquito Misting Compare to Pyranha 1-10 HP (2.5 Gallon) 79004 Review April 16, 2018 No Comments Pystol Misting Concentrate is the first generic Pyranha 1-10HP designed for use with automatic misting systems in barns and outdoor residential yards. Pystol will kill and repel all flying insects when applied correctly. Tags: Camping & Hiking, Outdoor Recreation, Personal Care, Pystol, Sports & Outdoors