These versatile and robust valves offer simple serviceability. For the maximum in convenience, reliability, and ease of service in a residential valve, the PGV Jar-Top is the solution. With the PGV Jar-Top, it's possible to service a Hunter valve without using any tools. Even with this ease-of-maintenance and operational simplicity, the PGV Jar-Top still delivers quality and performance to handle the demands of any residential system. All models feature durable, high-grade, corrosive and UV-resistant PVC construction, glass reinforced jarring and a rugged double-beaded, leak-proof diaphragm with support to prevent stress failure. Captive bonnet screws eliminate the possibility of lost parts during disassembly. Jar-top models provide easy access without tools. Encapsulated solenoid with captive plunger used on every Hunter valve provides hassle-free service. Flow control maximises efficiency and prolongs the life of the system.