Enviro-Equipment Ultra High Purity Helium The ultra high purity (99.999%) heliumĀ gas is typically used as a tracer gas for leak detection. SKU UHP-HE-34L $55.00 Quantity Price 1 (Individual) $55.00 10 (Case) $495.00 Select product Ultra High Purity (99.999%) Helium, 34 L Quantity Related Products Image Dielectric MGD 2002 Leak Detector Rental $110 Quote Request