About This Universal Compatibility: Propane tank gauge designed to fit QCC1/Type1 connectors and 5-40 lb propane tanks; works seamlessly with most standard propane cylinders for versatile use Easy Gas Level Monitoring: Check remaining fuel without disconnecting, moving, or shaking the tank; propane gauge clear dial display shows accurate propane levels at a glance Wide Application: Gauge for propane tank perfect for gas grills, patio heaters, camping stoves, fire pits, and other outdoor propane appliances; ideal for backyard BBQ, camping trips, and outdoor gatherings Premium Brass Construction: Propane tank gauge level indicator maade from durable brass with heat-resistant design; reduces risk of leaks caused by thermal expansion and contraction for long-lasting safety Tool-Free Installation: Propane gauge for 40 lb tank hand-wheel design allows quick setup in under 2 minutes; no additional tools required; 3-pack value set ensures backup gauges for multiple tanks