This set of two air release valves provides reliable automatic venting for irrigation and drainage systems. Made from durable PP material with NPT threading and an approximate 3/4 inch size, these valves help prevent air lock, maintain steady water flow, and are simple to install in existing systems. Key benefits Prevents air lock and performance drops by automatically releasing and admitting air during operation. Durable construction: corrosion resistant PP material for long service life in outdoor and wet environments. Easy installation: standard NPT threading fits common irrigation fittings and DIY setups. Versatile use across turf, garden, and agricultural drip systems to improve flow consistency and reduce maintenance needs. Specifications Material: PP Size: about 3/4 inch Thread type: NPT threading Package includes: 2 x Air release valve Typical applications Lawn and turf irrigation mains: install on points to eliminate trapped air and maintain uniform sprinkler performance. Home garden drip systems and vegetable beds: place where air pockets form to reduce pulse and clogging of emitters. Agricultural and greenhouse irrigation lines: use on supply and distribution lines to ensure consistent pressure and flow. Installation and usage notes Designed for straightforward integration with existing NPT threaded fittings. Manual measurement, please allow slight variation in size. Color may differ slightly due to screen display settings. This pair of air release valves offers a practical, maintenance reducing solution for keeping water moving smoothly in a variety of irrigation and drainage setups.