Shop › Air Tank Gauge Image 1 of 1 Air Tank Gauge $20.00 This self-adhesive back scale allows you to monitor the level in the tank. Get notified by email when this product is in stock. Sign up to receive news and updates. Quantity: Add To Cart Added! This self-adhesive back scale allows you to monitor the level in the tank. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More