The kit can also be protected during storage. The Automotive cooling system vacuum purge & refill kit can be evacuated within a few minutes to eliminate trapped air. 【Durable Radiator Pressure Tester with Good Airtightness 】The radiator pressure tester uses high-quality aluminum pump cylinders instead of ordinary plastic pump cylinders, 21" rubber nylon resin hoses and brass fittings to ensure durability and good airtightness.
eBay